General Circulation

Question 1

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

Answer 1

> (a) Subtropical high
(b) Polar High
(c) Equatorial high

Question 2

……….. occurs over subtropical high

Answer 2

(a) advection
(b) convection
>(c) subsidence

Question 3

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

Answer 3

> (a) subsidence
(b) convection
(c) advection

Question 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

Answer 4

> (a) Trade winds
(b) Roaring forties
(c) Doldrums

Question 5

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

Answer 5

> (a) Hadley Cells
(b) Ferrel Cells
(c) Polar cells

Question 6

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

Answer 6

(a) Tropical Latitudes
(b) Middle latitudes
>(c) Horse Latitudes

Question 7

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

Answer 7

(a) Natural Westerlies
(b) Steady Westerlies
>(c) Zonal Westerlies

Question 8

In the equatorial regions the upper tropospheric winds are

Answer 8

(a) Westerlies
>(b) Easterlies
(c) Zonal Westerlies

Question 9

The disturbances of middle latitudes move from

Answer 9

> (a) W to E
(B) E to W
(c) N to S
(d) S to N

Question 10

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

Answer 10

a) Easterly direction
>(b) Westerly direction
(c) Southerly direction

Question 11

Tropical disturbance which reach the zone of transition in the upper level flow change course and begin to move in
(a) Perpendicular direction
(b) Opposite direction
(c) Southwards

Answer 11

(a) Perpendicular direction
>(b) Opposite direction
(c) Southwards

Question 12

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

Answer 12

> (a) surplus
(b) deficit
(c) balance

Question 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

Answer 13

> (a) Synoptic Meteorology
(b) Climatology
(c) Physical Meteorology

Question 14

Rising air creates calms or doldrums in the equatorial region.

Answer 14

(a) ITCZ
(b) Horse Latitudes
>(c) Equatorial Doldrums

Question 15

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

Answer 15

(a) Easterly winds
>(b) Trade Winds
(c) Tropical Winds