1. The Effects of La-Nina are

2. La-Nina which comes after El-Nino affects the Pacific ocean by

3. Which of the following statements about La-Nino is/are correct?

4. The first signs of an El-Nino are
1. Rise in surface pressure over the Indian Ocean, Indonesia, and Australia.
2. Fall in air pressure over Tahiti and the rest of the central and Eastern Pacific Ocean.
3. Warm air rises near Peru, causing rain in the Northern Peruvian deserts.
4. Warm water spreads from the west Pacific and the Indian Ocean to the East Pacific.
5. It takes the rain with it, causing extensive drought in the Western Pacific and rainfall in the normally dry Eastern Pacific.

5. Which one of the following statements regarding El-Nino is not true?

6. In some years the trade winds can become extremely strong and an abnormal accumulation of cold water can occur in the central and Eastern Pacific. This event is called

7. Assertion (A) : A part from largescale climatic aberrations in the Tropics, El-Nino has a disastrous consequence on the fishing industry of Peru. Reason (R) : El-Nino leads to massive displacements of the rainfall bringing droughts over large parts of the normal raining areas and torrential rains to arid regions of the Tropics. Codes

8. The occasional development of warm ocean surface waters along the coast of Ecuador and Peru is known as

9. Assertion (A) : El-Nino and La- Nina result from interaction between the surface of the ocean and the atmosphere in the tropical Pacific. Reason (R) : Changes in the ocean impact the atmosphere and climate patterns around the globe. Codes

10. Assertion (A) : El-Nino and La-Nina are extreme phases of a naturally occurring climate cycle referred to as El-Nino/Southern Oscillation. Reason (R) : Both terms refer to large-scale changes in sea-surface temperature across the eastern tropical Pacific. Codes

11. Which of the following statement is not correct about AI-Nino and La- Nino?

12. Tsunamis are produced by

13. Which of the following statement about El-Nino and La-Nino is correct?

14. The development of an El-Nino brings

15. La-Nina Weather creates

16. El-Nino Weather creates

17. El-Nino is

18. Assertion (A) : According to the National Oceanic and Atmospheric Administration (NOAA), the El-Nino part of the cycle involves warmer than usual sea temperatures, great amounts of rainfall (in the Northern Hemisphere) and low atmospheric pressure. Reason (R) : The most extreme results of an El-Nino event have included flooding from Ecuador to the Gulf of Mexico, massive marine life die-offs in the Pacific, hurricanes in Tahiti and Hawaii, and concurrent droughts in many other parts of the world from Southern India to Australia to Central America. Codes

19. La-Nina is suspected to have caused recent floods in Australia. How is La-Nina different from El-Nino?
1. La-Nina is characterised by unusually cold ocean temperature in equatorial Indian Ocean whereas El-Nino is characterised by unusually warm ocean temperature in equatorial Pacific Ocean.
2. El-Nino has adverse effect on South-West monsoon of India, but La-Nina has no effect on monsoon climate. Which of the statements given above is/are correct?

20. Which of the following conditions are associated with El-Nino phenomena?

21. Which of the following creates ocean upwelling off the coasts of Peru and Ecuador and brings nutrient-rich cold water to the surface, increasing fishing stocks

22. Consider the following statements:
1. The walker circulation weakens during El-Nino events.
2. El-Nino events often result in flooding in California.
3. During El-Nino years, there are fewer hurricanes in the Atlantic. Which of the statements given above is/are correct?

23. The El-Nino which influenced the Indian monsoon is

24. The first research project programme which focused on the El-Nino Southern Oscillation and its predictability was called

25. Match List-I (Layers of Atmosphere) with List-II (Characteristics) and select the correct answer using the code given below the lists: List-I List-II
A. Stratosphere 1.Temperature decrease with increasing height.
B. Exosphere 2.Aurora Boreal’s and Aurora Australis are produced.
C. Troposphere 3.Contains much of the total atmospheric ozone.
D. Ionosphere 4.Noetilucent clouds are observed over high latitude in Summer. Codes A B C D