151. Between India and East Asia, the navigation-time and distance can be greatly reduced by which of the following?
152. In India, which type of forest among the following occupies the largest area?
153. At which one of the following places do two important rivers of India originate, while one of them flows towards north and merges with another important river flowing towards Bay of Bengal, the other one flows towards arabian Sea?
A-1.; B-3.; C-3.; D-4. A-4.; B-3.; C-2.; D-1. A- 1.; B- 2.; C-3.; D-4. A-4.; B- 2.; C-3.; D- 1.
Answer: A- 1.; B- 2.; C-3.; D-4.
157. Which of the following pairs are correctly matched?
158. Which one of the following is correct order of layers in atmosphere?
159. Which one of the following is true about stratosphere?
1. Ozone layer is found in stratosphere.
2. Aeroplanes fly in stratosphere.