Geography › Climatology

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 an unusually cold ocean temperature in equatorial Indian Ocean whereas El Nino is characterised by unusually warm ocean temperature in the 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?

Westerlies in southern hemisphere are stronger and persistent than in northern hemisphere. Why?

1. Southern hemisphere has less landmass as compared to northern hemisphere
2. Coriolis force is higher in southern hemisphere as compared to northern hemisphere

Which of the statements given above is/are correct?

What could be the main reason/reasons for the formation of African and Eurasian desert belt?

1. It is located in the sub-tropical high pressure cells
2. It is under the influence of warm ocean currents

Which of the statements given above is/are correct in this context?