In which one of the following atmospheric layers temperature remains constant ? 

• Stratosphere

• Tropopause

• Mesosphere

• Troposphere

Which one of the following is the correct sequence of surface components of pressure and wind from the equator to poles ?

• polar easterlies , westerlies , sub-tropical highs , trade winds

• sub-tropical highs , westerlies , trade winds , polar easterlies

• trade winds , sub-tropical highs , westerlies , polar easterlies

• trade winds , polar easterlies , westerlies , sub-tropical highs

ASSERTION (A) : Above 1000 meters altitudes most winds follow a geostrophic or near geostrophic course.

REASON (R) : The friction layer of the atmosphere extends to only about 1000 meters above the ground.

• Both (A) are (R) are true and (R) is the correct explanation of (A). 

• Both (A) are (R) are true and (R) is not the correct explanation of (A). 

• (A) is true , but (R) is false.

• (A) is false , but (R) is true.

Which one of the following isotherms for the average temperature of the warmest month is generally accepted as equator ward edge of the Tundra climate ?

• 2°C

• 10°C

• 5°C

• 15°C

ASSERTION (A) : The trade winds are predominantly easterly.

REASON (R) : An easterly wind blows from west to east.

• Both (A) and (R) are true and (R) is the correct explanation of (A). 

• Both (A) and (R) are true and (R) is not the correct explanation of (A).

• (A) is true, but (R) is false.

• (A) is false , but (R) is true.

16.

Which one of the following types of climate is appropriate for BWh in Koppen's World Climate classification ?

• Subtropical Desert Climate

• Subtropical Steppe Climate

• Mid-latitude Desert Climate

• Mid-latitude Steppe Climate

Which one of the following values of temperatures is correct for the average freezing point for seawater in Arctic and Antarctic seas ?

• 2°C

• 0°C

• -2°C

• -10°C

• a-3 , b-4 , c-1 , d-2

• a-3 , b-4 , c-2 , d-1

• a-3 , b-2 , c-1 , d-4

• a-1 , b-2 , c-3 ,d-4

Which one of the following periods when the sea level around world , was as much as 130 meters lower than today ?

• Holocene

• Pleistocene

• Miocene

• Cambrian

ASSERTION (A) : The moon produces greater percentage of Earth's tides than the Sun.

REASON (R) : The Sun is closer to the Earth than the Moon.

• Both (A) and (R) are true and (R) is the correct explanation of (A).

• Both (A) and (R) are true but (R) is not the correct explanation of (A).

• (A) is true , but (R) is false.

• (A) is false , but (R) is true.