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Consider the statements regarding insolation which is nothing but the radiant energy received from the Sun in the form of heat and light.
1) Insolation received on the surface of the Earth decreases from Equator to the Poles.
2) During Summer Solstice, maximum insolation received at the ground surface is between the 30 to 40 degree South latitudes.
3) Insolation received is comparatively higher in the outer limit of the atmosphere that is on the surface of the Earth.
Choose the correct statement/s from the following codes.

1, 2 only.
2, 3 only.
1, 3 only.
All the above.
Explanation:
Solar rays will have to travel longer distance to reach the polar region than the Equatorialregions thus large amount of energy is lost due to scattering, diffraction, reflection etc. thushigher insolation is experienced in the equatorial region.Similarly the insolation is higher in the outer limits of the atmosphere.In the second statement, the latitudes should have been North rather than South.
Additional Questions

When you Travel in Himalayas, you will see the following:
1. Deep gorges
2. U-turn river courses
3. Parallel mountain ranges
4. Steep gradients causing land-sliding
Which of the above can be said to be the evidences for Himalayas being young fold Mountains?

Answer

Weathering is the basic and first step in soil formation.
Consider the statements regarding weathering.
1) The rate of weathering increases with increasing steepness of the slope.
2) Mechanical weathering is higher in humid regions than in drier regions.
3) Chemical weathering is higher in drier regions than in humid regions.
Choose the correct statement/s from the codes below.

Answer

Cherrapunji and Mawsynram records very high annual rainfall. This is because

Answer

When cold front passes over an area then
1. temperature decreases.
2. relative humidity increases.
3. sky becomes clear.
Select the correct answer using the codes given below.

Answer

What are the causes of low pressure in the equatorial region?
1. high temperature
2. air convergence
3. high humidity
Select the correct answer using the codes given below.

Answer

With reference to acidic lava ,consider the following statements :
1. they are viscous and flow slowly
2. they form a flattened lava dome
Which of the statements given above is/are correct ?

Answer

Ragi, a millet is currently encouraged to include in the diet to supplement nutrients to counter the malnutrition that is haunting the country.
Consider the following statements Ragi.
1) Ragi is rich in iron, calcium, roughphage and is mainly grown in dry regions.
2) Among minor producers Sikkim, Arunachal Pradesh, Uttarakhand are included.
3) It is grown as a major crop in Bengaluru-Mysuru table land from where the country’s majority of Ragi production comes from.
Choose the correct statements from the code below.

Answer

Corals reefs are generally absent on the western coasts of continents. This is because

Answer

Which one of the following pairs is not correctly matched?
Dam/Lake River

Answer

Black soils are known for its fertility with little or no evidence of exhaustion. This is because
1. Black soils with equal proportion of clay, gravel and coarse sand has high moisture retention capacity.
2. Cracks developed during dry season allow oxygenation of the soils.
3. Black soil has low level of kankar thus supports wide variety of crops.
Choose the incorrect reason from the codes below

Answer
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