GENERAL CIRCULATION

1.       The pole wards moving air piles up in the subtropical regions and forms high pressure belt at the surface, called

a.     Subtropical high  

b.       Polar High   

c.       Equatorial high

2.       occurs over subtropical high

a.       advection

b.       convection

c.     subsidence

3.       The occurrence of large deserts near 30N and 305 are due to large scale

a.     subsidence 

b.       convection

c.      advection

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

a.       Trade winds

b.       Roaring forties     

c.     Doldrums

5.       The huge vertical circulations, one between the equator and 3 ON and another between equator and 30S, are called

a.     Hadley Cells        

b.       Ferrel Cells

c.       Polar cells

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

a.       Tropical Latitudes

b.       Middle latitudes  

c.     Horse Latitudes

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

a.       Natural Westerlies

b.       Steady Westerlies

c.    Zonal Westerlies

8.       In the equatorial regions the upper tropospheric winds are

a.       Westerlies 

b.     Easterlies

c.      Zonal Westerlies

9.       The disturbances of middle latitudes move from

a.     W to E   

b.       E to W

c.       N to S

d.       S to N

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

a.       Easterly direction

b.     Westerly direction 

c.       Southerly direction

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

a.       Perpendicular direction

b.     Opposite direction

c.       Southwards

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

a.     surplus     

b.       Deficit

c.      balance

13.   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

a.     Synoptic Meteorology

b.       Climatology

c.       Physical Meteorology

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

a.       ITCZ

b.       Horse Latitudes

c.     Equatorial Doldrums

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

a.      Easterly winds

b.    Trade Winds

c.       Tropical Winds