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Science MCQ | Class 7 NCERT

1. Match the following

List-I

1. Cell

2. Cell membrane

3. Nucleus

4. Cytoplasm

List-II

i. Jelly like substance around the nucleus

ii. Thin outer boundary of the cell.

iii. Centrally located spherical structure of the cell

iv. Basic tiny units of a living organism

a) ii iii iv i

b) iv ii iii i

c) iv iii ii i

d) iv ii I iii


Answer: b;


2. Match the following

List-I

1. Stomata

2. Vessel

3. Chlorophyll

4. Cuscuta

List-II

i. Parasite

ii. Tiny pores on the surface of leaves.

iii. Pipe that transports minerals and water from roots to leaves.

iv. Green Pigment of leaves.

a) ii iii iv i

b)    iii ii iv i

c) iv iii ii i

d) i iii iv ii


Answer: a;



3. The Organism which takes in nutrients from dead and decaying matter is called;

a) Autotrophs

b) Heterotrophs

c) Saprotrophs

d) Symbiosis


Answer: c;


4. Cuscuta is an example of:

a) autotroph 

b) parasite 

c) saprotroph 

d) host


Answer: b;


5. The plant which traps and feeds on insects is:

a) Cuscuta 

b) china rose 

c) pitcher plant 

d) rose


Answer: c;


6. Match the items given in Column I with those in Column II:

Column I Column II

1. Chlorophyll i. Rhizobium

2. Nitrogen         ii. Heterotrophs

3. Cuscuta         iii. Pitcher plant

4. Animals         iv. Leaf

5. Insects v. Parasite


Answer: 1-iv; 2-I; 3-v; 4-ii; 5-iii;


7. Plants take carbon dioxide from the atmosphere mainly through their:

a) roots

b) stem 

c) flowers

d) leaves 


Answer: d;


8. Which part of the Plants takes carbon dioxide from the air for photosynthesis:

a) Root hair

b) Stomata

c) Leaf veins

d) Petals 


Answer: b;


9. Match the following;

List-I

1. Digestion

2. Ingestion

3. Salvia

4. Digestive juices

List-II

i.  The process of food taking in the body.

ii. The breakdown of complex components of food into simple substances.

iii. Break down the proteins into simpler substances.

iv. Break down the starch into sugars.

a) ii    i    iii    iv

b) i    ii    iii    iv

c) ii    i    iv    iii

d) iii    iv    ii    i


Answer: c;


10. Match the following;

List-I

1. Bile Juice stored in

2. Bile help

3. Process of removal of waste

4. Amoeba

List-II

i. Digestion of fats. 

ii. Gall Bladder

iii. Pseudopodia

iv. egestion. 

a) ii    i    iv    iii

b) i    ii    iii    iv

c) iii    ii    iv    i

d) iv    iii    ii    i


Answer: a;


11. Which one of the following statements is not correct.

a) Digestion of carbohydrates like starch begins in the Buccal cavity.

b) Digestion of protein starts in the stomach.

c) Bile secreted from the liver.

d) Digestive Juice release from Glad Bladder.


Answer: d. Digestive juice release from the intestine.


12. Which one of the following is true.

a) Digestion of starch starts in the stomach.

b) The tongue helps in mixing food with saliva.

c) The gall bladder temporarily stores Digestive Juice. 

d) The cud bring back swallowed grass into their mouth and chew it for some time. 


Answer: b;


13. Fat is completely digested in the

a) stomach 

b) mouth 

c) small intestine 

d) large intestine


Answer: c;

14.  Water from the undigested food is absorbed mainly in the

a) stomach 

b) food pipe 

c) small intestine

d) large intestine


Answer: d;


15. Match the items of Column I with those given in Column II:

Column I                                                 Column II

Food components                                 Product(s) of digestion

1. Carbohydrates.                                 i. Fatty acids and glycerol

2. Proteins.                                            ii. Sugar

3. Fats.                                                    iii. Amino acids


Answer: 1-ii; 2-iii; 3-i


16. Match the items of Column I with suitable items in Column II

Column I                                             Column II

(a) Salivary gland                         (i) Bile juice secretion

(b) Stomach                                 (ii) Storage of undigested food

(c) Liver                                         (iii) Saliva secretion

(d) Rectum                                     (iv) Acid release

(e) Small intestine                         (v) Digestion is completed

(f ) Large intestine                         (vi) Absorption of water

                                                            (vii) Release of feces


Answer: a-iii; b-iv; c-i;d-vii; e-v; f-vi;


17. Mohair wool is obtained from;

a) Yak

b) Angora Goats

c) Camel

d) Tibetan Ship


Answer: b;


18. Lohi, Rampur bushier, Nali, Bakharwal, Marwari, and Patanwadi are varieties of ;

a) Indian Goats

b) Indian Sheeps

c) Indian Bull

d) Indian rice


18. लोहि, रामपुर बुशियर, नाली, बखरवाल, मारवाड़ी और पटनवाड़ी किस्में हैं;

a) भारतीय बकरियाँ

b) भारतीय भेड़ें

c) भारतीय बैल

d) भारतीय चावल

Answer: b;


19. Anthrax blood disease, an important disease in the wool industry is caused by ;

a) Bacteria

b) Fungi

c) Virus

d) Parasite


Answer: a;


20. Rearing of Silkworm is called;

a) Horticulture

b) Pisciculture

c) Sericulture

d) Apiculture


Answer: c;


21. The silkworm is (a) a caterpillar, (b) a larva. Choose the correct option.

a) a 

b) b 

c) Both a and b 

d) neither a nor b.


Answer: c;


24. Which of the following does not yield wool?

a) Yak 

b) Camel 

c) Goat 

d) Woolly dog


Answer: d;


25. Match the words of Column I with those given in Column II:

Column I                                                 Column II

1. Scouring.                                        i.  Yields silk fibers

2. Mulberry leaves.                            ii. Wool yielding animal

3. Yak.                                                 iii. Food of silkworm

4. Cocoon.                                            iv.  Reeling

                                                              v. Cleaning sheared skin

Answer: 1-v; 2-iii;3-ii; 4-i;


26. Match of the following;

List-I

1.Conductors

2. Insulator.

3. Convection

4. Conduction.

List-II

i. The Materials which allow heat to pass;

ii. The material which does not allow to pass;

iii. The process by which heat is transferred from the hotter end to the colder end of the object without movement of molecules.

iv; Mixing of heat by the movement of molecules. 

a) i    ii    iv    iii

b) i    ii    iii     iv

c) ii    i    iv    iii

d) iii    iv    ii    i


Answer: a;


27. Match the following

List-I

1. Sea breeze

2. Land Breeze

3. Laboratory thermometer

4. Clinical thermometer 

List-II;

i. Movement of air from land to sea;

ii. Movement of air from sea to land;

iii. Measure the body temperature.

iv. Uses to measure other than body temperature.

a) i    ii    iii    iv

b) ii    i    iv    iii

c) iii    iv    ii    i

d) ii    i    iii    iv


Answer: b;

28. Which of the following process of heat transfer does not require a medium to transfer the heat;

a) Conduction

b) Convection

c) Radiation

d) Scattering


Answer: c;


29. Which one of the following statement is not correct;

a) When we sit in front of the heat, we can heat by radiation process.

b) Our body gets and gives the heat from surrounding by radiation process.

c) All the hot bodies radiate heat.

d) The transfer of heat by radiation requires a medium.


Answer: d;


30. Match the following :

1.  Land breeze blows during.                             i. summer

2. Sea breeze blows during.                                 ii. winter

3. Dark-colored clothes are preferred during.    iii. day

4. Light-colored clothes are preferred during. iv. night

        1    2    3    4

a)     iii    iv    i    ii

b)    iv    iii    ii    i

c)    ii    i    iv    iii

d)    i    ii    iii    iv


Answer: b


31. One liter of water at 30°C is mixed with one liter of water at 50°C. The temperature of the mixture will be

a) 80°C 

b) more than 50°C but less than 80°C

c) 20°C 

d) between 30°C and 50°C


Answer: d;

32.An iron ball at 40°C is dropped in a mug containing water at 40°C. The heat will

(a) flow from the iron ball to water.

(b) not flow from iron ball to water or from water to iron ball.

(c) flow from water to iron ball.

(d) increase the temperature of both


Answer: b;

33. A wooden spoon is dipped in a cup of ice cream. Its other end

a) becomes cold by the process of conduction.

b) becomes cold by the process of convection.

c) becomes cold by the process of radiation.

d) does not become cold.


Answer: d;


34. . Stainless steel pans are usually provided with copper bottoms. The reason for this could be that

a) copper bottom makes the pan more durable.

b) such pans appear colorful.

c) copper is a better conductor of heat than stainless steel.

d) copper is easier to clean than the stainless steel


Answer: c;


35. Which one of the following is not correct;

a) The substance which tastes sour contains acids.

b) The substance that is bitter in taste and feels soapy on touching are known as bases.

c) Litmus is extracted from lichens.

d) Litmus is an artificial indicator used to test the acidic or base nature of solutions.

Answer: d; Litmus is the natural indicator.


36. Match the following.

List -I(Colour of Litmus paper)

1. Purple 

2. Red

3. Blue

4. No change in color

List-II( Indicate)

i. Neutral solution

ii. Distilled water

iii. Acid solution

iv. Base solution

    1    2    3    4

a) ii    iii    iv    i

b) i    ii    iii    iv

c) ii    iv    iii    i

d) ii    i    iv    iii

Answer; a;


37. Match the following

List-I( Name of Acid)

1. Acetic acid

2. Formic acid

3. Citric acid

4. Lactic Acid

List-II(Found in)

i. Curd

ii. Lemon

iii. Ant's sting

iv. Vinegar

        1    2    3    4

a)      i    ii    iii    iv

b)    ii    i    iv    iii

c)    iii    ii    i    iv

d)     iv    iii    ii    i


Answer: d;


38. Match the following

List-I(Name of base)

1. Calcium Hydroxide

2. Ammonium Hydroxide

3. Sodium Hydroxide

4. magnesium Hydroxide

List-II( Found in)

i. Milk of Magnesia

ii. Soap

iii. Window Cleaner

iv. Lime water

        1    2    3    4

a)      i    ii    iii    iv

b)    ii    i    iv    iii

c)    iii    ii    i    iv

d)     iv    iii    ii    i


Answer: d;


39. Match the following

List-I( Name of Acid/Base)

1. Oxalic acid

2. Ascorbic acid ( Vitamin C)

3. Tartaric acid

4. Potassium Hydroxide

List-II( Found in)

i. Soap

ii. Unripe Mangoes

iii. Amla

iv. Spinach

        1    2    3    4

a)      i    ii    iii    iv

b)    ii    i    iv    iii

c)    iii    ii    i    iv

d)     iv    iii    ii    i


Answer: d;


40. Which of the following is not a natural indicator to test the acidity and bases.

a) Litmus

b) Turmeric

c) China rose ( Gudhal)

d) Unripe Mango


Answer: d;


41. When we mix acid and base solution, it produces;

a) Salt

b) Oxygen

c) Nitrogen

d) Protein


Answer: a;


42. Which types of acid our stomach contains;

a) Acetic acid

b) Formic acid

c). Citric acid

d). Hydrochloric acid


Answer: d.


43. With reference of soil treatment, If soil is basic in nature, which one of the following should be added in soil treatment;

a) Organic compost

b) Calcium oxide

c) Slaked lime

d) Calcium hydroxide


Answer: a;


44. With reference to soil treatment, If soil is Acid in nature, which one of the following should not be added in soil treatment;

a) Organic compost

b) Calcium oxide

c) Slaked lime

d) Calcium hydroxide


Answer: a;


45. Salt is 

a) Acidic in nature

b) Base in nature

c) Neutral

d) It may be acidic, basic, or neutral in nature.


Answer: d;


46. Which of the following statement is true;

a) Nitric acid turns red litmus blue.

b) Sodium hydroxide turns blue litmus red.

c) Sodium hydroxide and hydrochloric acid neutralize each other and form salt and water.

d) Tooth decay is caused by the presence of a base.

Answer: c;


47. Consider the following statements:

1. Both acids and bases change the color of all indicators.

2. If an indicator gives a color change with an acid, it does not give a change with a base.

3.  If an indicator changes color with a base, it does not change color with an acid.

4.  Change of color in an acid and a base depends on the type of the indicator.

Which of these statements are correct?

a) All four 

b) 1 and 4

c) 2, 3 and 4 

d) only 4


Answer: c;


48.   Which of the following statements is not true;

a) Properties such as shape, size, color, and state of a substance are called physical properties.

b) Physical change is generally not reversible.

c) In a physical change, no new substance is formed.

d) Rusting is an example of chemical change.


Answer: b;

it is reversible.


49. Which of the following statements is not an example of chemical changes;

a) Digestion of food in our body.

b) Ripening of fruits.

c) Fermentation of grapes.

d) Water cycle


Answer: d;


50.  The process of deposition a layer of -----------on iron is called Galvanisation.

a) Zinc

b) Aluminium

c) Gold

d) Silver


Answer: a;


51. Some substances can be obtained in a pure state from their solutions, it is called;

a) Galvanisation

b) Crystallisation

c) Condensation

d) Precipitation


Answer: b;


52. Which one of the following statements is true.

a) Cutting a log of wood into pieces is a chemical change. 

b) Formation of manure from leaves is a physical change.

c) Iron pipes coated with zinc do not get rusted easily. 

d) Iron and rust are the same substances. 

Answer: c;


53. Which of the following statements is not true; 

a) Rainfall is measured by an instrument called a rain gauge.

b) Day-to-day atmospheric phenomenon at a place with respect to temperature, humidity, rainfall, etc is called climate.

c) All changes in the weather are caused by Sun.

d) Average weather pattern over a long time is called climate.


Answer: b


54. Match the following;

List-I;

1. Adaptation

2. Evolution

3. Polar region

4. Equatorial region

List -II

i. Process helps animals to adapt to their surroundings.

ii. Features to Organism to protect themselves against extreme cold or heat.

iii. Tropical rainforest

iv. Penguins

        1    2    3    4

a)     ii    i    iv    iii

b)        ii    iii    iv

c)     iii    ii    iv    i

d)     iii    iv    ii    i


Answer:

a;


55. A carnivore with stripes on its body moves very fast while catching its prey. It is likely to be found in

a) polar regions 

b) deserts

c) oceans 

d) tropical rainforests


Answer:b;


56. Which features adapt polar bears to live in an extremely cold climate?

a) A white fur, fat below the skin, keen sense of smell.

b) Thin skin, large eyes, white fur.

c) A long tail, strong claws, white large paws.

d) White body, paws for swimming, gills for respiration


Answer: a;


57. Which option best describes a tropical region?

a) hot and humid

b) moderate temperature, heavy rainfall

c) cold and humid

d) hot and dry

Answer: a;


58. Consider the followings statements;

1. Swift movement of falling water droplet along with the rising air create lightening and sound ; it is called cyclone.

2.  formation of a very low-pressure system with very high-speed winds revolving around it, it is called thunderstorm.

Which of the above statemnts is true;

a) 1 only

b) 2 only

c) 1 and 2 only

d) None;


Answer: d; reverse is true.


59. Match the following;

List-I( Cyclone Name)

1. Hurrican

2. Typhoon

3. Cyclone

4. Willy Willy


List-II( Place)

i. Indian Ocean

ii. North Atlantic Ocean

iii. Australia

iv. North Pacific Ocean

        1    2    3    4

a)     i    ii    iii    iv

b)    ii    iv    i    iii

c)    iv    ii    iii    i

d)    ii    iii    i    iv


Answer: b;


59. Which one of the following places is unlikely to be affected by a cyclone.

a) Chennai 

b) Mangaluru (Mangalore)

c) Amritsar

d) Puri

Answer: c;


60. Which of the statements given below is correct?

a) In winter the winds flow from the land to the ocean.

b) In summer the winds flow from the land towards the ocean.

c) A cyclone is formed by a very high-pressure system with very high-speed winds revolving around it.

d) The coastline of India is not vulnerable to cyclones.


Answer: a;


61. Match the following

List-I

1. Soil Profile

2. Humus

3. Weathering

4. Horizons 

List-II;

i.The rotting dead matter in the soil.

ii. Breaking down of rocks by action of wind, water, and climate.

iii. Layer of Soil profile.

iv. Vertical layers of soil. 

    1    2    3    4

a) iv    i    ii    iii

b) i    iv    ii    iii

c) iv    i    iii    ii

d) iv    iii    ii    i


Answer: a,

62. Match the following

List-I

1. A-Horizon

2. B-Horizon

3. C-Horizon

4. Bed rock

List-II

i. Below the C-Horizon; hard and difficult to dig.

ii. Made up by small lumps of rocks with cracks and services.

iii. Less humus but mineral rich.

iv. Dark in colour; rich in humus and minerals.

  1    2    3    4

a) iv    i    ii    iii

b) i    iv    ii    iii

c) iv    i    iii    ii

d) iv    iii    ii    i

Answer: d;


63. Match the following.

List-I

1. Soil

2. Sandy Soil

3. Clayey Soil

4. Loamy Soil

List-II

i. Mixuture of sand, clay, silt, and humus.

ii. Proprtion of fine particles is relative higher.

iii. Proprtion of big particles is relative higher.

iv. Mixture of roick particles, humus, living organism such as bacteria, plants roots, earthworm.

  1    2    3    4

a) iv    i    ii    iii

b) i    iv    ii    iii

c) iv    i    iii    ii

d) iv    iii    ii    i

Answer: d;


64. Which of the following statements is not correct;
a) Percolation rate of water is highest in the sandy soil.
b) Percolation rate of water is least in the clayey soil.
c) Cotton is grown in clayey loam soil.
d) Clay and loam soil are suitable for wheat, gram, and paddy.

Answer: c;
Cotton is grown sandy loam soil.

65. In addition to the rock particles, the soil contains
a) air and water
b) water and plants
c) minerals, organic matter, air and water
d) water, air and plants

Answer: c;

66. The water holding capacity is the highest in
a) sandy soil
b) clayey soil
c) loamy soil
(d) mixture of sand and loam 

Answer: b;

67. Match the items in Column I with those in Column II:
Column I                                                                 Column II
1. A home for living organisms                             i) Large particles
2. Upper layer of the soil                                       ii) All kinds of soil
3. Sandy soil                                                         iii. Dark in colour
4. Middle layer of the soil                                     iv.  Small particles and packed tight
5. Clayey soil                                                         v. Lesser amount of humus

    1    2    3    4    5
a)  ii   iii    i       v     iv
b)  iii    ii    i    v        iv
c)  iii    ii    v    i        iv
d)    iv    ii    iii    i    v

Answer: a;

68. Match the following
List-I
1. Cellular respiration.
2. Aerobic repiration
3. anerobic repiration
4. inhalation

List-II;
i. Breaking of glucose with use of oxygen into carbon dioxide, energy, and water.
ii.Breaking of glucose in absence of oxygen into carbon dioxide, energy, and lactic acid.
iii. The process of breaking of food in the cell with rellease of energy.
iv. the takingthe air rich oxyge in the body
    1    2    3    4
a)  i    ii    iii    iv
b) iii    i    ii    iv
c) ii    iii    i    iv
d)   iv    ii    iii    i

Answer; b

69.  In cockroaches, air enters the body through
a) lungs 
b) gills
c) spiracles 
d) skin

Answer: c;

70. During heavy exercise, we get cramps in the legs due to the accumulation of
a) carbon dioxide 
b) lactic acid
c) alcohol 
d) water

Answer: b;

71. Normal range of breathing rate per minute in an average adult person at rest is:
a) 9–12 
b) 15–18
c) 21–24 
d) 30–33

Answer: b

72. During exhalation, the ribs
a) move outwards 
b) move downwards
c) move upwards 
d) do not move at all

Answer: b;

73.  Match the items in Column I with those in Column II:
Column I                                         Column II
(a) Yeast                                         (i) Earthworm
(b) Diaphragm                                (ii) Gills
(c) Skin                                           (iii) Alcohol
(d) Leaves                                        (iv) Chest cavity
(e) Fish                                             (v) Stomata
(f) Frog                                             (vi) Lungs and skin
                                                          (vii) Tracheae

Answer: a-iii;b-iv;c-i;d-v; e-ii; f-vi;

74. Which of the following statements is not correct regarding Blood;
a) Blood transports digested food from large intensine to other part of body.
b) It carries oxygen from lungs to cell.
c) It transport waste for revoval from body.
d) Blood is composed of fluid called plasma.

Answer: a;
Blood transports digested food from small intensine.

75. Match the following;
List-I
1. Red Blood Cell
2. Haemoglobin.
2. White Blood cell
4. Platelets.

List-II
i. Transport oxygen to all parts of the body.
ii. has red pigment called haemoglobin.
iii. Helps in blood cloting.
iv. fight against germs.
        1    2    3    4
a)    ii    i    iv    iii
b)    i    iv    iii    ii
c)    iv    i    ii    iii
d)    iv    iii    ii    i

Answer: a;

76. Math the following.
List-I
1. Arteries
2. Veins
3. Thick walls
4. Thin walls

List-II
i.  the vessel which carry carbon dioxide rich blood from all part of body back to heart.
ii. Carry oxyegn rich blood from heart to all parts of the body.
iii. Arteris
iv. Vein
 1    2    3    4
a)    ii    i    iv    iii
b)    i    iv    iii    ii
c)    iv    i    ii    iii
d)    iv    iii    ii    i

Answer: a;

77.  Match the following
List-I
1. Capillaries
2. heart
3. Heartbeats
4. Stethoscope

List-II
i. Four chambers
ii. Extremely thin tubes which join to form veins.
iii. rhythmic contraction and relaxation of heart.
iv. intrument to feel heartbeats.
     1    2    3    4
a)    ii    i    iv    iii
b)    ii    i   iii    iv
c)    iv    i    ii    iii
d)    iv    iii    ii    i

Answer: b;

78. Match the following;
List-I
1. Xylem
2. Phloem
3. Tissue
4. Dialysis

List-II
i. Group of cell
ii. transport of water and nutrients in the plants.
iii. transport synthesise food from leaves
iv. Artificial Kidney

   1    2    3    4
a)    ii    i    iv    iii
b)    ii    iii   i    iv
c)    iv    i    ii    iii
d)    iv    iii    ii    i

Answer: b;

79. Match structures given in Column I with functions given in Column II.
Column I                                     Column II
1 Stomata                                i. Absorption of water
2. Xylem                                 ii. Transpiration
3. Root hairs                         iii. Transport of food
4.  Phloem                             iv. Transport of water
                                                v Synthesis of carbohydrates
 1    2    3    4
a)    ii    i    iv    iii
b)    ii    iv   i    iii
c)    iv    i    ii    iii
d)    iv    iii    ii    i

Answer: b;


80. In plants, water is transported through
a) xylem 
b) phloem
c) stomata 
d) root hair

Answer: a;

81. Water absorption through roots can be increased by keeping the plants
a) in the shade
b) in dim light
c) under the fan
d) covered with a polythene bag

Answer: c;

81.  Which of the following statements is not true.
a) Vegetative parts of plant are roots, leaves, stems.
b) Asexual reproduction plants can give rise to new plants without seeds.
c) Sexual reproduction plants can give rise to new plants with seeds.
d) Plants produced by vegative propogation ( without seeds) take more time to grow and bear flower than those by seeds plants.

Answer: d;

82. Match the following
List-I
1. Yeast
2. Algae
3. Fungi
4. Rose

List-II
i.  Fragmentation
ii. Buddding.
iii. Asexual reproduction
iv. Spore formation 
 1    2    3    4
a)    ii    i    iv    iii
b)    ii    iv   i    iii
c)    iv    i    ii    iii
d)    iv    iii    ii    i

Answer: a;

83.  Match the following
List-I
1. Stamens
2. Pistil 
3. Either Stamens or Pistil
4. Both Pistil and Stamens

List-II
i. Femal reproduction
ii. Male reproduction
iii. Bisexual flower
iv. Unisexual flower
 1    2    3    4
a)    ii    i    iv    iii
b)    ii    iv   i    iii
c)    iv    i    ii    iii
d)    iv    iii    ii    i

Answer: a;

84.  Match the following
List-I
1. Male Gametes
2. Female Gametes
3. fertilizer
4. Zygote

List-II
i. Ovary
ii. Anther
iii. Cell which result of Fusion of male and femal Gametes.
iv. Process of fusion of male and femal Gametes.
 1    2    3    4
a)    ii    i    iv    iii
b)    ii    iv   i    iii
c)    iv    i    ii    iii
d)    iv    iii    ii    i

Answer: a;

85. Match items in Column I with those in Column II:
Column I                                 Column II
1. Bud                                 (i) Maple
2. Eyes                                (ii) Spirogyra
3. Fragmentation                 (iii) Yeast
4. Wings                             (iv) Bread mould
5. Spores                             (v) Potato
                                                (vi) Rose

        1    2    3    4    5
a)    ii    i    iv    iii    v
b)    ii    iv   i    iii    v   
c)    iv    i    ii    iii    v
d)    iii  v    ii    i        iv

Answer: d.

86. The reproductive part of a plant is the
a) leaf 
b) stem 
c) root
d) flower

Answer: d.

87.  The process of fusion of the male and the female gametes is called
a) fertilisation 
b) pollination
c) reproduction 
d) seed formation

Answer: a;

88. Mature ovary forms the
a) seed 
b) stamen
c) pistil 
d) fruit

Answer: a;


89. A spore producing organism is
a) rose 
b) bread mould
c) potato 
d) ginger
Answer. b;

90. Bryophyllum can reproduce by its
a) stem
b) leaves
c) roots 
d) flower

Answer: b;


91.  Match the following
List-I
1. Speed
2. Bob of the pendulum
3. Oscillatory motion
4.  time period
List-II
i. Metallic ball
ii. Distance cover by object in unit time. 
iii.Time taken by Pendulum to complete one oscillation motion. 
iv.Pendulum motion.
      1    2    3    4
a)    ii    i    iv    iii
b)    ii    iv   i    iii
c)    iv    i    ii    iii
d)    iv    iii    ii    i

Answer: a;

92. Which of the following are not correct?
a) The basic unit of time is second.
b) Every object moves with a constant speed.
c) Distances between two cities are measured in kilometres.
d) The time period of a given pendulum is constant.

Answer: b;

93. The basic unit of speed is:
a) km/min 
b) m/min
c) km/h 
d) m/s

Answer d;

94. A car moves with a speed of 40 km/h for 15 minutes and then with a speed of 60 km/h for the next 15 minutes. The total distance covered by the car is:
a) 100 km 
b) 25 km
c) 15 km 
d) 10 km

Answer: b;

95. Full form of Electric MCB is;
a) Maximum Circuit breaker
b) Minimum Circuit breaker
c) Miniature circuit breaker
d) Max Cut Bond

Answer: c;

96. Magnetic effect of electric current was first discovered by;
a) Alessandro Volta
b) Henry Woodward
c) Maxwell
d) Hans Christian Oersted

Answer: d;

97. Which of the following statements is correct;
a) To make a battery of two cells, the negative terminal of one cell is connected to the negative terminal of the other cell. 
(b) When the electric current through the fuse exceeds a certain limit, the fuse wire melts and breaks.
(c) An electromagnet does not attract a piece of iron. 
(d) An electric bell does not have electromagnet.

Answer: b;

98. Match the following
List-I
1. Plain Mirror
2. Convex mirror
3. Concave mirror
4. Virutal image
List-II;
i. Used as side mirror in vehicles. Can form images of objects spread over large areas.
ii. Formed image can be smaller or larger in size than a object. Image may be real or virtual. Used by doctors to examine eyes, ears, nose, throans, etc.
iii. Image formed is erect and the same size as the object.
iv. Image could not obtain on a screen.
     1    2    3    4
a)    ii    i    iv    iii
b)    ii    iv   i    iii
c)   iii    i    ii    iv
d)    iv    iii    ii    i

Answer: c;

99. Match the following
List-I
1. Convex lens
2. Concave lens
3. White light
4. Light
List-II
i. Diverge the lights; Image formes is always virtual , erect, and smaller in size than the objects.
ii. Converge ( bends inwards) the lights; Image form real and inverted. Used in magnifying glass.
iii.  Straight line
iv. Seven colours
 1    2    3    4
a)    ii    i    iv    iii
b)    ii    iv   i    iii
c)    iv    i    ii    iii
d)    iv    iii    ii    i

Answer: a;

100. Which of the following statements is true;
a) A concave mirror always form a real image.
b) A concave lens always form a virtual image.
c) We can obtain a real, enlarged and inverted image by a concave mirror.
d) A real image cannot be obtained on a screen.

Answer: b;

101. Match the items given in Column I with one or more items of Column II.
Column I                                                             Column II
1. A plane mirror                                             (i) Used as a magnifying glass.
2. A convex mirror                             (ii) Can form image of objects spread over a large area.
3. A convex lens                                         (iii) Used by dentists to see enlarged image of teeth.
4. A concave mirror                                 iv) The image is always inverted and magnified.
5.  A concave lens                             (v) The image is erect and of the same size as the object.
                                                        (vi) The image is erect and smaller in size than the object.
       1    2    3    4    5
a)    ii    i    iv    iii    v
b)    ii    iv   i    iii    v    
c)    iv    i    ii    iii    v
d)    v    ii    i    iii       vi

Answer: a;

102. A virtual image larger than the object can be produced by a
a) concave lens 
b) concave mirror
c) convex mirror 
d) plane mirror

Answer: b;

103. World water day is celebrated on;
a) 22 March
b) 22 April
c) 22 May
d) 22 June

Answer: a;

104. The amount of water recommended by the United Nations for drinking, washing, cooking and maintaining proper hygiene per person per day is a minimum of;
a) 50 litres
b) 100 litres
c) 150 litres
d) 250 litres

Answer: a;

105. Which year was observed as the International Year of Freshwater to make people aware of this dwindling natural resource.
a) 2000
b) 2003
c) 2006
d) 2009

Answer: b;

106. Match the following;
List-I
1. Water table
2. inflitration
3. aquifer
4. Water harvesting

List-II
i. The process of seeping of water into the ground.
ii. The distance between the ground surface and groundater.
iii. The rainwater can be used to recharge the groundwater.
iv. Below the water table, at place the groundwater is stored between layer of hard rock.

         1    2    3    4
a)    ii    i    iv    iii
b)    ii    iv   i    iii
c)    iv    i    ii    iii
d)    iv    iii    ii    i

Answer: a;

107. Which one of the following statements is correct;
a) The freshwater stored in the ground is much more than that present in the rivers and lakes of the world. 
b) Water shortage is a problem faced only by people living in rural areas. 
c) Water from rivers is the only source for irrigation in the fields.
d) Rain is not the ultimate source of water.

Answer:a;

108. Which one of the following is not responsbile for water shortage?
a) Rapid growth of industries
b) Increasing population
c) Heavy rainfall
d) Mismanagement of water resources

Answer: c;

109. Choose the correct option. The total water
a) in the lakes and rivers of the world remains constant.
b) under the ground remains constant.
c) in the seas and oceans of the world remains constant.
d) of the world remains constant.

Answer: d;

110. Match the following.
List-I
1. Canopy
2. Crown of the tree.
3. Humus
4. Decomposer

List-II
i. Branchy part of a tree above the stem.
ii. Braches of tall trees look like a roof over the other plants in the forest
iii. Microorganism which convert the dead plants and animal into humus.
iv. Microorganisms covert dead plants and animal tissues into dark coloured substances.
  1    2    3    4
a)    ii    i    iv    iii
b)    ii    iv   i    iii
c)    iv    i    ii    iii
d)    iv    iii    ii    i

Answer: a;

111. Which of the following is not a forest product?
a) Gum
b) Plywood
c) Sealing wax
d) Kerosene

Answer: d;

112. Which of the following statements is not correct?
a) Forests protect the soil from erosion.
b) Plants and animals in a forest are not depedent on one another.
c) Forests influence the climate and water cycle.
d) Soil helps forests to grow and regenerate.

Answer: b;

113. Micro-organisms act upon the dead plants to produce
a) sand 
b) mushrooms 
c) humus 
d) wood

Answer: c;

114. United Nations proclaimed the period as the International Decade for action on “Water for life”. The period is;
a) 2005–2015
b) 2006-2016
c) 2010-2020
d) 2015-2025

Answer: a;

115. Match the following
List-I
1. Organic impurities
2. Inporganic impurities
3. Nutrients
4. Bacteria

List-II
i. Vibrio cholera; salmonella-caused typhoid.
ii. Phosphorous and nitrogen
iii.Nitrate , phosphates.
iv. Human Faeces, animal waste, urine

      1    2    3    4
a)    ii    i    iv    iii
b)    ii    iv   i    iii
c)    iv    i    ii    iii
d)    iv    iii    ii    i

Answer: d;

116. Match the followings
List-I
1. Bar Screen
2. Grit and sand removal
3. Water Clarifer
4. Aerator

List-II
i. Aerobic bacteria consume human waste, food waste, soaps, 
ii. Remove floatable soilds like oil and grease.
iii. sand, grit, pebbles settle down  
iv. remove large objects like rags, sticks, cans, plastic packets, napkins, etc.

         1    2    3    4
a)    ii    i    iv    iii
b)    ii    iv   i    iii
c)    iv    i    ii    iii
d)    iv    iii    ii    i

Answer: d;

117. Government of India intiated swachh Bharat in the year;
a) 2014
b) 2015
c) 2016
d) 2017

Answer: c;

118. Study the following statements about ozone:
1. It is essential for breathing of living organisms.
2. It is used to disinfect water.
3. It absorbs ultraviolet rays.
4. Its proportion in air is about 3%.
Which of these statements are correct?
a) 1, 2 and 3
b) 2 and 3
c) 1 and 4
d) All four

Answer: b; 



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