UPSC  Geography

251. 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.

1, 2 only. 2, 3 only. 1, 3 only. All the above.

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252. 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.

1, 2 only. 1, 3 only. 2, 3only. All the above.

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253. The arabian Sea branch of the monsoon is much more powerful than the Bay of Bengal branch because

Arabian sea is larger than the Bay of Bengal. entire Arabian sea current advances towards India, whereas only a part of the Bay of Bengal current enters India. both a. and b. none is correct because Bay of Bengal branch is more powerful.

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254. 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?

Igneous rocks. Sedimentary rocks. Metamorphic rocks. All the above rock types are equally reliable.

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255. 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.

2 only. 1, 3 only. 2, 3 only. 3 only.

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256. 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.

1 only. 2 only. Both are true. None of the above.

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257. Earth experiences seasons in a rhythmic fashion.
What are the causative factors?
1) Rotation of the Earth on its own axis.
2) Revolution of the Earth in its orbit around the Sun.
3) Spherical shape of the Earth.
4) Earth’s tilted axis.
5) Axial parallelism.
Choose the correct code from the following.

1, 2 only. 1, 2, 3 only. 1, 2, 4, 5 only. All the above.

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258. Some parts of India has littoral and swamp forests. With reference to these forests ,consider the following statements :
1. they can survive in both fresh as well as brackish water
2. important species of such forests are teak, sal, mahua etc
Which of the statements given above is/are correct ?

1 only 2 only Both 1 and 2 Neither 1 nor 2

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259. The greatest damage to life and property from a hurricane is due to

storm surge. torrential rains. strong winds in the hurricane both b. and c.

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260. Which of the following areas is/are best suited for formation of air masses?
1. an extensive area with broadly uniform surface of earth.
2. areas having cyclones.
3. hot deserts in tropical regions.
Select the correct answer using the codes given below.

1 and 2 only 1 and 3 only 1 only 1, 2 and 3 only

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