• a-iii , b-iv , c-i , d-ii

• a-iii , b-i , c-iv , d-ii

• a-ii , b-i , c-iv , d-iii

• a-ii , b-iv , c-i , d-iii

Air movement in the troposphere is caused by

• Solar wind

• Convective current

• Gravitational force

• Air pressure

The unit of air pressure measurement is

• Degree

• Isobars

• Meters per second

• Hecta-Pascal

Which one of the following is not a mechanism of energy transfer ?

• Conduction

• Advection 

• Radiation

• Ablation

ASSERTION (A) : Stable air resists vertical movement and unstable air ascends freely because of its own buoyancy.

REASON (R) : When stable air is forced aloft the clouds that form are widespread and have little vertical thickness.

• (A) is correct but (R) is wrong.

• (A) is wrong but (R) is correct.

• Both (A) and (R) are correct.

• Both (A) and (R) are wrong.

166.

Which one of the following types of clouds appears at the highest level in the sky ?

• Alto-cumulus

• Cirro-cumulus

• Cumulo-nimbus

• Strato-cumulus

Which one of the following pairs is not correctly matched ?

• (a) Foehn : Warm dry winds moving down the Alps

• Mistral : Cold winds blowing from Alps over France

• Santa Ana : Warm dry wind moving down Applachian

• Bora : Cold winds experienced  along the eastern coast of the Adriatic sea

Which one of the following gases is not a natural element of the atmosphere ?

• Krepton

• Argon

• Chloroflurocrabon

• Water vapour

In Koppen's classification of climate , the symbol Aw refers to

• Tropical Savanna climate

• Monsoon climate

• Tropical Rainforest climate

• Steppe climate

The strongest winds in a hurricane are found in

• the eye of the hurricane

• the spiral bands of thunderstorm

• the eye wall of the hurricane

• the easternly waves