Question Bank

1. Steady NE winds in the N hemisphere and SE winds in the S hemisphere are called

2. The occurrence of large deserts near 30N and 30S are due to large scale

3. The descending branch of the Hadley cell marked by calm winds and high pressure at the surface are called

4. Latitudinally, on the average there is radiation ______ in the tropics than in the polar regions

5. The disturbances of middle latitudes move from

6. Rising air creates calms or doldrums in the equatorial region

7. The systems like highs, lows, cyclonic circulation etc are associated with distinct types of weather. A study of the behaviour of these systems, known as

8. The tropical disturbances which form in the equatorial low pressure belt move in

9. A part of the sinking air over the subtropical high flows towards the equator, turning west (in the northern hemisphere) due to the Coriolis force. This surface air is called

10. The winds in the upper troposphere are westerly. These are known as

11. ______ occurs over subtropical high

12. The polewards moving air piles up in the subtropical regions and forms high pressure belt at the surface, called

13. In the equatorial regions the upper tropospheric winds are

14. The huge vertical circulations, one between the equator and 30N and another between equator and 30S, are called

15. Tropical disturbance which reach the zone of transition in the upper level flow change course and begin to move in a