Chapter-4 [Air]
1. Which of the following gases protects us from harmful sun rays?
a) Carbon dioxide
b) Nitrogen
c) Ozone
d) Oxygen
Answer. c. Ozone
Ozone gases protect us from harmful sun rays and Ozone gases are found in the stratosphere.
2. The most important layer of the atmosphere is
a) Troposphere
b) Thermosphere
c) Mesosphere
d) Stratosphere
Answer. a. Troposphere.
The troposphere is the most important layer of the atmosphere as all living organisms, and weather phenomenon exists in the troposphere.
The average height of the troposphere is around 13 km.
3. Which of the following layers of the atmosphere is free from clouds?
a) Troposphere
b) Stratosphere
c) Mesosphere
d) Thermosphere
Answer. b. Stratosphere.
The stratosphere (13-50 km) layer is the second layer of the atmosphere and it is free from clouds and atmospheric weather phenomena; that is why is most suitable for flying airplanes.
4. As we go up the layers of the atmosphere, the pressure
a) Increases
b) Decreases
c) Remains the same
d) depends on latitude
Answer. b; Decrease.
The pressure decreases as we go up the layers of the atmosphere.
Air pressure is highest at sea level.
5. When precipitation comes down to the earth in liquid form, it is called
a) Cloud
b) Rain
c) Snow
d) Hail
Answer. b. Rain.
When precipitation comes down to the earth in liquid form, it is called rain.
When the cloud is below freezing precipitation that comes down to the earth is called snowfall.
6. Match the following.
i) Trade Winds (a) Seasonal wind
ii) Loo (b) Horizontal movement of Air
iii) Monsoon (c) Permanent wind
iv) Wind (d) Local wind
Answer.
i-c;
iid;
iii-a;
iv-b;
- Trade winds, easterlies, and westerlies are permanent winds. These blow constantly same direction throughout the year.
- Trade winds are permanent winds that blow from subtropical high pressure( 30 to 35 degrees north and south latitudes from both hemispheres) towards the equatorial low pressure[ Doldrum]
- Loo is local warm winds that blow on great Indian plains during the summer season.
- Monsoon is the seasonal wind that blows from the southeast direction in summer and northwest direction in winter. The southeast monsoon causes rainfall in India.
- The wind is the horizontal movement of air.
7. When the level of greenhouse gases in the atmosphere increases due to factory smoke or car fumes, the heat retained increases the temperature of the earth. What is it called?
a) Greenhouse gas effect
b) Global warming
c) Global cooling
d) Climate change
Answer. b) Global warming
8. Our earth is surrounded by a huge blanket of air is called?
a) Atmosphere
b) Hydrosphere
c) Lithosphere
d) Biosphere
Answer. a) Atmosphere
9. What is the share of Nitrogen gas in the atmosphere?
a) 0.03 %
b) 0.93 %
c) 21 %
d) 78 %
Answer. d) 78 %
10. What is the share of Carbon dioxide gas in the atmosphere?
a) 0.03 %
b) 0.93 %
c) 21 %
d) 78 %
Answer. a) 0.03 %
11. What is the share of Carbon dioxide gas in the atmosphere?
a) 0.03 %
b) 0.93 %
c) 21 %
d) 78 %
Answer. a) 0.03 %
12. What is the share of Argon gas in the atmosphere?
a) 0.03 %
b) 0.93 %
c) 21 %
d) 78 %
Answer. b) 0.93 %
13. Our atmosphere has how many layers?
a) 2
b) 3
c) 5
d) 7
Answer. c) 5; troposphere, stratosphere, mesosphere, ionosphere/thermosphere, and exosphere.
14. What is the average height of the troposphere?
a) 11 km
b) 13 km
c) 15 km
d) 17 km
Answer. b) 13 km
15. Almost all the weather phenomena like rainfall, fog, and hailstorms occur in which layer of the atmosphere?
a) Troposphere,
b) Stratosphere,
c) Mesosphere,
d) Thermosphere
Answer. a) Troposphere,
16. Which of the following atmospheric layers is most ideal for flying airplanes?
a) Troposphere,
b) Stratosphere,
c) Mesosphere,
d) Thermosphere
Answer. b) Stratosphere,
17. Which of the following atmospheric layers contain the ozone gas?
a) Troposphere,
b) Stratosphere,
c) Mesosphere,
d) Thermosphere
Answer. b) Stratosphere,
18. The height of the stratosphere is about?
a) 25 km
b) 50 km
c) 60 km
d) 80 km
Answer. b) 50 km
19. Which of the following is the third layer of the atmosphere?
a) Troposphere
b) Stratosphere
c) Mesosphere
d) Thermosphere
Answer. c) Mesosphere
20. Meteorites burn up in which layer of the atmosphere on entering from space?
a) Troposphere
b) Stratosphere
c) Mesosphere
d) Thermosphere
Answer. c) Mesosphere
21. The height of the mesosphere is about?
a) 25 km
b) 50 km
c) 60 km
d) 80 km
Answer. d) 80 km
22. Ionosphere is part of which of the following layers?
a) Troposphere
b) Stratosphere
c) Mesosphere
d) Thermosphere
Answer. d) Thermosphere
23. Temperature rises very rapidly with increasing height in which of the following layers?
a) Troposphere
b) Stratosphere
c) Mesosphere
d) Thermosphere
Answer. d) Thermosphere
24. Radio waves transmitted from the earth are reflected back by which of the following layers?
a) Troposphere
b) Stratosphere
c) Mesosphere
d) Thermosphere
Answer. d) Thermosphere
25. Which of the following is the outermost layer of the atmosphere?
a) Troposphere
b) Exosphere
c) Mesosphere
d) Thermosphere
Answer. b) Exosphere
26. hour-to-hour, day-to-day condition of the atmosphere is called?
a) daily routine
b) daily work
c) weather
d) climate
Answer. c) weather
27. The average weather condition of a place for a longer period of time is called?
a) daily routine
b) daily work
c) weather
d) climate
Answer. d) climate
28. The degree of hotness and coldness of the air is known as?
a) Thermometer
b) Barometer
c) Temperature
d) Insolation
Answer. c) Temperature
29. Incoming solar energy intercepted by the earth is called?
a) Thermometer
b) Barometer
c) Temperature
d) Insolation
Answer. d) Insolation
30. The amount of insolation ------- from the equator towards the poles?
a) Increase
b) Decrease
c) remain the same
d) None
Answer. b) Decrease
31. The device which measures the temperature is known as the?
a) Thermometer
b) Barometer
c) Rain Gauge
d) Wind vane
Answer. a) Thermometer
32. The device which measures the atmospheric pressure is known as the?
a) Thermometer
b) Barometer
c) Rain Gauge
d) Wind vane
Answer. b) Barometer
33. The device which measures the amount of rainfall is known as the?
a) Thermometer
b) Barometer
c) Rain Gauge
d) Wind vane
Answer. c) Rain Gauge
34. The device which shows the direction of the wind is known as the?
a) Thermometer
b) Barometer
c) Rain Gauge
d) Wind vane
Answer. d) Wind vane
35. The standard unit of measuring temperature is degrees Celsius. It was invented by
a) Anders Celsius
b) Richard Celsius
b) Newton
d) Henry Celsius
Answer. a) Anders Celsius
36. The air above us presses us with a great force on our bodies. However, we don’t even feel it. This is because?
a) All creatures are strong.
b) We have thick skin.
c) the air presses us from all directions and our body exerts a counter pressure.
d) We are immune to air pressure.
Answer. c) the air presses us from all directions and our body exerts a counter pressure.
37. Which of the following can be defined as the pressure exerted by the weight of air on the earth’s surface?
a) Air Pressure
b) Barometer
c) Temperature
d) Insolation
Answer. a) Air Pressure
38. As we go up the layers of the atmosphere, the atmospheric pressure?
a) Falls slowly
b) Falls rapidly
c) Increases slowly
d) Increases rapidly
Answer. b) Falls rapidly
39. Low atmospheric pressure is associated with which of the following weather phenomena?
a) Clear skies and dry weather
b) Clear and Sunny skies
c) Cloudy skies and dry weather
d) Cloudy skies and wet weather
Answer. d) Cloudy skies and wet weather
40. High atmospheric pressure is associated with which of the following weather phenomena?
a) Clear skies and dry weather
b) Clear and Sunny skies
c) Cloudy skies and dry weather
d) Cloudy skies and wet weather
Answer. b) Clear and Sunny skies
41. Which of the following is not Permanent winds?
a) The trade winds
b) Westerlies winds
c) Easterlies winds
d) Monsoon winds
Answer. d) Monsoon winds
42. Which of the following is an example of seasonal winds?
a) The trade winds
b) Westerlies winds
c) Easterlies winds
d) Monsoon winds
Answer. d) Monsoon winds
43. The wind that blows only during a particular period of the day or year in a small area is called?
a) Permanent winds
b) Seasonal Winds
c) Local Winds
d) Trade winds
Answer. c) Local Winds
44. Which of the following is not an example of local winds?
a) Land Breeze
b) Sea Breeze
c) Loo
d) Polar Easterlies
Answer. d) Polar Easterlies
45. Which of the following is also known as Horse Latitudes?
a) Equatorial Low-Pressure
b) Sub-Tropical High-pressure
c) Sub-polar low pressure
d) Polar high pressure
Answer. b) Tropical High-pressure
46. Which of the following is also known as Doldrums?
a) Equatorial Low-Pressure
b) Sub-Tropical High-pressure
c) Sub-polar low pressure
d) Polar high pressure
Answer. a) Equatorial Low-Pressure
47. What are the latitudinal values of the Equatorial low-pressure belt or doldrum?
a) 5°N to 5°S
b) 10°N to 10°S
c) 30°N to 35°N
d) 60°N to 65°N
Answer. b) 10°N to 10°S
48. What are the latitudinal values of the subtropical high pressure[ horse latitudes] in the northern hemisphere?
a) 5°N to 5°S
b) 10°N to 10°S
c) 30°N to 35°N
d) 60°N to 65°N
Answer. c) 30°N to 35°N
49. What are the latitudinal values of the sub-polar lower pressure in the northern hemisphere?
a) 5°N to 5°S
b) 10°N to 10°S
c) 30°N to 35°N
d) 60°N to 65°N
Answer. d) 60°N to 65°N
50. What are the latitudinal extents of Northeast Trade Winds?
a) 5°N to 5°S
b) 10°N to 30°N
c) 30°N to 35°N
d) 60°N to 65°N
Answer. b) 10°N to 30°N
51. What are the latitudinal extents of Westerlies Winds in the northern hemisphere?
a) 5°N to 5°S
b) 10°N to 30°N
c) 35°N to 60°N
d) 60°N to 65°N
Answer. c) 35°N to 60°N
52. Moisture in the air at any time, is known as?
a) Wet Weather
b) Dry Weather
c) Humidity
d) Wet Atmosphere
Answer. c) Humidity
53. Which of the following days, do clothes take longer to dry, and sweat from our body does not evaporate easily, making us feel very uncomfortable. ?
a) Dry day
b) Warm day
c) Cold day
d) Humid day
Answer. d) Humid day
54. Jet planes flying in the sky leave a white trail behind them, which of the following is the main reason for the formation of a white trail?
a) Jet Plate uses white oil
b) They consume lots of oil and release heavily polluted gas.
c) The moisture from their engines condenses.
d) It is the result of the presence of low atmospheric pressure at such a height.
Answer. c) The moisture from their engines condenses.
55. Precipitation that comes down to the earth in liquid form is called?
a) Rain
b) Dew
c) Sleet
d) snowing
Answer. a) Rain
56. Which of the following is not a type of rainfall?
a) Cyclonic rainfall
b) Orographic rainfall
c) Conventional Rainfall
d) Depression rainfall
Answer. d) Depression rainfall
57. Which of the following rainfall commonly happens in mountainous regions?
a) Cyclonic rainfall
b) Orographic rainfall
c) Conventional Rainfall
d) Depression rainfall
Answer. b) Orographic rainfall
58. Loo wind is an example of which types of winds?
a) Permanent Winds
b) Seasonal Winds
c) Local Winds
d) Sea winds
Answer. c) Local Winds
59. Monsoon wind is an example of which types of winds?
a) Permanent Winds
b) Seasonal Winds
c) Local Winds
d) Sea winds
Answer. b) Seasonal Winds
60. Trade winds are an example of which types of winds?
a) Permanent Winds
b) Seasonal Winds
c) Local Winds
d) Sea winds
Answer. a) Permanent Winds
61. Arrange the following atmospheric zones in terms of the distance from the earth's surface in increasing order and select the correct answer from the code given below:( UPPSC 2015)
1. Thermosphere
2. Troposphere
3. Stratosphere
4. Mesosphere
a) 1,3,,4,2
b) 2,3,1,4
c) 3,4,2,1
d) 2,3,4,1
Answer. d;
1. Troposphere(0-18km)> Stratosphere(11-50)> Mesosphere(50-90km)> Thermosphere/IONOsphere(90-800km)> Exosphere(800-36000km)
62.
You May Like also:
- Chapter-1 [Environment]
- Chapter-2[Inside our Earth]
- Chapter-3[ Our Changing Earth]
- Chapter-4 [Air]
- Chapter-5 [Water]
- Chapter-6 [ Natural Vegetation and Wild Life]
- Chapter-7 [ Human Settlement -Settlement, Transport, and Communication]
- Chapter-8[ Human-Environment Interactions: The Tropical and subtropical region]
- Chapter-9[ Life in the Deserts]
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