Atmosphere MCQs

Question 1

The January isotherm taken as a basis for dividing India into tropical and subtropical zones is ________

Accepted Answer

15° C

Answer

21° C

Answer

18° C

Answer

12° C

Question 2

Density of the Earth's atmosphere is highest in the

Accepted Answer

Troposphere

Answer

Stratosphere

Answer

Mesosphere

Answer

Ionosphere

Question 3

A devastating Cloud Burst swept over Leh on August 2010. Which one of the following statements with regard to Cloud Burst is not correct?

Accepted Answer

Cloud Burst occurs only in hilly areas

Answer

Cloud Burst is a localized weather phenomenon representing highly concentrated rainfall over a small area in a short duration of time

Answer

Cloud Burst occurs due to upward movement of moisture laden air with sufficient rapidity to form cumulonimbus clouds

Answer

There is no satisfactory technique till now for predicting Cloud Burst

Question 4

When can one record the lowest temperature of air?

Accepted Answer

Just before sunrise

Answer

At midnight

Answer

At 3 a.m.

Answer

No fixed time

Question 5

Which of the following is wrongly matched?

Accepted Answer

Rain caused by vertical circulation of air currents - orographic rainfall

Answer

Rainfall caused by mountain standing in the way of moisture - laden winds - relief rainfall

Answer

Rain caused by a warm moist air mass moving upward over cold air mass - cyclonic rainfall

Answer

An area sheltered from rain bearing winds by a hill - rain shadow area

Question 6

Pampero is ________

Accepted Answer

A cold wind which prevails in Argentina and Uruguay

Answer

A low pressure area in Equator 63° S

Answer

A moisture laden wind which brings rainfall to the west coast of Panama

Answer

A high pressure area which develops first and then leads to the formation of an anticyclone

Question 7

An upper air wind system with very high velocities in certain parts of the atmosphere is called ________

Accepted Answer

Jet stream

Answer

A cyclone

Answer

An anticyclone

Answer

A tsunami

Question 8

In the earth's atmosphere, the atmospheric pressure ________

Accepted Answer

Decreases with height

Answer

Increases with height

Answer

Remains constant with height

Answer

First increases and then decreases with height

Question 9

When a descending air contracts and its volume decreases, what happens to its temperature?

Accepted Answer

Its temperature increases

Answer

Its temperature decreases

Answer

Its temperature remains constant

Answer

Its temperature first increases, then decreases