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Many areas in Rajasthan and adjoining states have arid and desert soils. Which of the following are correct about such soils ?
1. they have high phosphate content
2. they have high nitrogen content
3. they are poor in organic matter
Select the correct answer using the codes given below.
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Answer
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The productivity in the Indian agriculture has stagnated since 1990’s although the usage of fertilizers has considerably increased since then.
What is/are the possible reason/s increase in the productivity cannot come through increase in the usage of fertilizers.
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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 ?
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Which of the following conditions is/are conducive for the formation of tropical cyclones?
1. large and continuous supply of warm and moist air.
2. large value of coriolis force.
3. inflow of air at upper level of atmosphere.
Select the correct answer using the codes given below.
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Answer
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The atmospheric temperature significantly varies in its distribution pattern. The factors that are the reason for this variability include
1) Sign of latitude.
2) Land and water distribution.
3) Oceanic currents.
Choose the correct reason from the following codes.
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Consider the statements regarding salinization which is a one of the major problem, reducing Indian agricultural productivity.
1. In drier regions, capillary action can lead to salt accumulation on the surface of the land which is brought from the deep saline ground water tables.
2. Irrigation can result in salinization of soils.
3. It can occur both naturally as well as artificially.
Choose the correct statements from the codes given below.
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The Arabian Sea branch of the monsoon is much more powerful than the Bay of Bengal branch because
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Paleomagnetism is the past magnetism of Earth stored in a rock.
Which among the following type of rocks provides most reliable readings of magnetism at a particular time?
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Troposphere being the weather layer is the most important layer.
Consider the statements regarding this weather layer.
1) The height of the troposphere increases from Equator to the Poles.
2) The height of the troposphere is comparatively more during the summer season than in the winter season.
3) The height of the troposphere doesn’t get affected by the change in seasons.
Choose the correct statement/s from the following code.
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Himalayan yew is a plant found in Himachal Pradesh and Arunachal Pradesh was in news recently.
Consider the following statements regarding the plant.
1) It is a medicinal plant.
2) A chemical compound called ‘Taxol ‘obtained from the plant is used as an effective anti-TB drug.
Choose the incorrect statements from code below.
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