151.

The temperature at which water vapours condense is the

• Relative humidity

• Condensation point 

• Dew point

• Evaporation point

Examine the following statements and select the correct answer using codes given below :

(a) The atmospheric air is never completely dry.

(b) Water vapour can occupy as much as 4% of the atmospheric volume.

(c) Water vapour in the atmosphere is always invisible.

• 1 & 2 are correct

• 2 & 3 are correct

• 1 & 3 are correct

• 1 , 2 & 3 are correct

If you are sitting on th beach facing the sea on a sunny afternoon , the local wind will be 

• striking your back and continuing to be sea because of sea breeze effect.

• towards your from the sea because of the sea breeze effect.

• towards your from the sea because of the lapse rate effect.

• striking your back and continuing to the sea because of the land breeze effect.

If you sitting on the bench facing the sea on a sunny afternoon , the local wind will be

• striking your back and continuing to the sea because of the sea breeze effect.

• towards your from the sea beacuse of the sea breeze effect.

• towards your from the sea beacuse of the lapse rate effect.

• striking your back and continuing to the sea because of the land breeze effect.

According to "Single cell circulation" model proposed by Hadley , the most important factor causing global atmospheric circulation is

• subsidence at the equator

• temperature contrast between equator and pole

• the jet stream

• rotation of the earth

Which of the following would likely to have the lowest albedo ?

• Mirror

• Fresh snow in the Arctic

• Moist ploughed soil

• Thick cloud

ASSERTION (A) : Hurricane cannot develop in the vicinity of equator.

REASON (R) : Coriolis force is maximum over the equator.

• 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.

When sun is shining vertically over tropic of Capricorn ?

• Days and nights are equal over the entire globe.

• Nights are longer than days in the Southern hemisphere.

• Nights are equal to 24hours over the Arctic region.

• Days nd nights are of 12hours duration over Antarctica.

Which one of the following statements is not true ?

• Evaporation is directly propotional to temperature.

• Evaporation is more over land than ocean.

• Evaporation is higher over warm surface than on cold surface.

• Evaporation reduces the amount of heat available in the atmosphere thereby reducing the temperature.

• a-ii , b-iii , c-iv , d-i

• a-i , b-iii , c-ii , d-iv

• a-iv , b-iii , c-i , d-ii

• a-iii , b-ii , c-iv , d-i