Tag: geography

Questions Related to geography

Which type of soil develops due to high temperature and evaporation?

geography external forces - responsible for changes the soil soil erosion (geo) soil erosion, soil conservation and uses of soil

  1. Pair Soil

  2. Land Soil

  3. Arid Soil

  4. None of these

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Correct Option: C
Explanation:

Arid soils develop due to high temperature and evaporation.

Most desert soils are called Aridisols (dry soil). These are porous sandy soils with low nitrogenous matter and humus.

Terracing is an effective method of soil conservation in _____________.

geography external forces - responsible for changes the soil soil erosion (geo) soil erosion, soil conservation and uses of soil

  1. Hilly areas

  2. Desert areas

  3. Plain areas

  4. None of these

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Correct Option: A
Explanation:

On hilly slopes, terraces act as bunds and prevent the soil from being washed away by running water. 

Soil conservation is best achieved by _____.

geography external forces - responsible for changes the soil soil erosion (geo) soil erosion, soil conservation and uses of soil

  1. Wind screens

  2. Good plant covers

  3. Both a and b

  4. None of these

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Correct Option: B
Explanation:

  • Soil erosion is the loss of top fertile layer of soil either by wind or by water.
  • India is facing this problem in many parts. The area affected by soil erosion is 5, 00,000 square kilometres. It adversely affects productivity and economy of the country.
  • There are many techniques to prevent soil erosion. But important step is to increase planting of trees or afforestation.

Arid soil is formed in western Rajasthan. Its main features are:
I. Arid soils range from red to yellow in colour.
II. They are generally sandy and saline. 
III. Humus and moisture content is very low due to dry climate and faster evaporation. 
IV. Thorny bushes are found in this region.

geography the soil soil erosion (geo) soil erosion, soil conservation and uses of soil soil erosion and conservation

  1. Only I, II and III

  2. Only II and III

  3. Only I, II and IV

  4. Only II, III and IV

Show answer
Correct Option: D
Explanation:

  • Arid soils range from red to brown in colour. 
  • They are generally sandy in texture and saline in nature. In some areas the salt content is very high and common salt is obtained by evaporating the water. 
  • Due to the dry climate, high temperature, evaporation is faster and the soil lacks humus and moisture. 
  • After proper irrigation these soils become cultivable as has been in the case of western Rajasthan.

Which one of the following crops is the most effective in controlling soil erosion?

geography external forces - responsible for changes the soil soil erosion (geo) soil erosion, soil conservation and uses of soil

  1. Cotton

  2. Gram

  3. Maize

  4. Pigeon peas

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Correct Option: B
Explanation:

Strip cropping is a method or farming in which more than one variety of crops are grown in different strips.

One of the important crop that is usually grown along with other crops is gram. This is because it has good soil holding capacity and prevents soil erosion.

Soils are usually formed by the process of ________.

geography external forces - responsible for changes the soil soil erosion (geo) soil erosion, soil conservation and uses of soil

  1. Weathering

  2. Deposition

  3. Denudation

  4. All of these

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Correct Option: D

Which of the following land forms is not associated with river erosion?

geography external forces - responsible for changes the soil soil erosion (geo) soil erosion, soil conservation and uses of soil

  1. Waterfall

  2. V-shaped valley

  3. Moraines

  4. Ox-bow lake

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Correct Option: C
Explanation:

Moraines is any glacially formed accumulation of unconsolidated glacial debris that occus in both currently and formerly glaciated regions on the earth. These are formed of the debris of glaciers. They are not formed due to river erosions.

Which one of the following soils found in India is the most useful for agriculture?

geography external forces - responsible for changes the soil soil erosion (geo) soil erosion, soil conservation and uses of soil

  1. Black or regur soil

  2. Alluvial soil

  3. Red and yellow soil

  4. Marshy soil

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Correct Option: B

Which one of the following is the main cause of soil erosion?

geography external forces - responsible for changes the soil soil erosion (geo) soil erosion, soil conservation and uses of soil

  1. Agriculture

  2. Industries

  3. Deforestation

  4. Urbanisation

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Correct Option: C

Which one of the following is not a result of soil erosion?

geography external forces - responsible for changes the soil soil erosion (geo) soil erosion, soil conservation and uses of soil

  1. Accumulation of silt in the river bed

  2. Deforestation

  3. Decrease in the percolation of water

  4. Decrease in the soil fertility

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Correct Option: B