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Consider the following statements about doldrums :
1. they are a high pressure region
2. they are a zone of wind divergence
Which of the statements given above is/are correct ?

1 only
2 only
Both 1 and 2
Neither 1 nor 2
Explanation:
Doldrums are the region between 5 degree north and south of the equator. They are low pressure zones because of heating and trade winds from both hemisphere converges here. Doldrums, also called equatorial calms, equatorial regions of light ocean currents and winds within the intertropical convergence zone (ITCZ), a belt of converging winds and rising air encircling Earth near the Equator. The northeast and southeast trade winds meet there; this meeting causes air uplift and often produces clusters of convective thunderstorms.
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1. Equator is a zone of wind convergence.
2. The temperature over equator is too high.
3. There are no fronts over equator.
Select the correct answer using the codes given below.

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1. They are the result of intense leaching.
2. They are poor in organic matter.
Which of the statements given above is/are correct?

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1. huge amount of sediments being deposited.
2. groundwater mining.
3. construction of large dams.
Select the correct answer using the codes given below.

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2. IDL is an imaginary straight line at 180 degree meridian.
Which of the statements given above is/are correct?

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1. Rockies
2. Himalayas
3. Andes
4. Alps
Select the correct answer using the codes given below.

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The lava cone of a volcano is having steep sloping sides. Which of these can be said about the volcano?
1. the lava must have been highly fluid.
2. it must have high silica content.
3. the volcano must have been explosive.
Select the correct answer using the codes given below.

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1. frost action on rocks.
2. repeated wetting and drying.
3. oxidation of minerals in a rock
Select the correct answer using the codes given below.

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