1. The 2004 Tsunami made people realize that mangroves can serve as a reliable safety hedge against coastal calamities. How do mangroves function as a safety hedge?
a) The mangrove swamps separate the human settlements from the sea by a wide zone in which people neither live nor venture out
b) The mangroves provide both food and medicines that people are in need of after any natural disaster.
c) The mangrove trees are tall with dense canopies and serve as an excellent shelter during a cyclone or tsunami
d) The mangrove trees do not get uprooted by storms and tides because of their extensive roots.
Answer. d
2. Westerlies in the southern hemisphere are stronger and persistent than in the northern hemisphere. Why?
1. Southern hemisphere has less landmass as compared to the northern hemisphere.
2. Coriolis force is higher in the southern hemisphere as compared to the northern hemisphere
Which of the statements given above is/are correct?
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2
Answer. a) 1 only
3. Between India and East Asia, the navigation time and distance can be greatly reduced by which of the following?
1. Deepening the Malacca Straits between Malaysia and Indonesia.
2. Opening a new canal across the Kra isthmus between the Gulf of Siam and the Andaman Sea.
Which of the statements given above is/are correct?
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2
Answer. c)
4. La Nina is suspected to have caused recent floods in Australia. How is La Nina different from El Nino?
1. La Nina is characterized by unusually cold ocean temperature in the equatorial Indian Ocean whereas El Nino is characterized by unusually warm ocean temperature in the equatorial Pacific Ocean.
2. El Nino has an adverse effect on the southwest monsoon of India, but La Nina has no effect on the monsoon climate.
Which of the statements given above is/are correct?
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2
Answer. d)
5. The lower Gangetic plain is characterized by a humid climate with high temperatures throughout the year. Which one among the following pairs of crops is most suitable for this region?
a) Paddy and cotton
b) Wheat and Jute
c) Paddy and Jute
d) Wheat and cotton
Answer. c) Paddy and Jute.
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