Tag: geography

Questions Related to geography

In which of the following ways can soil be conserved?
$1$. Contour ploughing
$2$. Terracing
$3$. Shifting cultivation
$4$. Crop rotation.

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

  1. I, II and IV

  2. II, III and IV

  3. II and IV

  4. I and III

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Correct Option: A

Which of the following indicates the types of soil erosion in decreasing order of damage caused in India?

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

  1. Ravine erosion and gullies, alkalinity and salinity weeds and water-logging

  2. Alkalinity and water-logging, ravine erosion and weeds

  3. Water-logging, weeds, salinity and ravine erosion

  4. All are equally damaging

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Correct Option: A

Which of the weathering agents is almost peculiar to the Indian Himalayas?

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

  1. Wind

  2. Glaciers

  3. Snowfall

  4. Running water

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Correct Option: B
Explanation:

A glacier erodes through a process called ‘plucking’ in which it lifts pieces of rock and transports them. These pieces of rock and the moving ice together act like a sandpaper on the surface of the rock over which they flow. In the Himalayan region, the glacier is the major weathering agent.

Which one of the following types of erosion is responsible for the formation of Chambal Ravines?

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

  1. Splash

  2. Sheet

  3. Rill

  4. Gully

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Correct Option: D

Which of the following statement is incorrect?

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

  1. Red soils are rich in iron

  2. Black soils are rich in phosphorus nitrogen and organic matter

  3. Alluvial soils are rich in potash but poor in phosphorus

  4. Red soils are suitable for cultivation of pulses and coarse grains

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Correct Option: B
Explanation:

Black soils are rich in soil nutrients, such as calcium carbonate, magnesium, potash and lime. These soils are generally poor in phosphoric contents.

"Mulching" is the term used for the process of

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

  1. Covering the roots of plants with loose material, dung, etc. in order to protect them from soil erosion etc.

  2. Breaking down big pieces of soil into small ones

  3. Transplanting of paddy seedlings

  4. Nitrogen fixation of soil by use of fertilizers

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Correct Option: A
Explanation:

Mulching is the process of covering the topsoil with plant material such as leaves, grass, twigs, crop residues, straw etc. it helps in soil conservation.

The principal cause of soil damage in Punjab and Haryana is ______.

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

  1. Deforestation

  2. Soil erosion

  3. Excessive cultivation

  4. over irrigation

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Correct Option: D

Which of the following States has the most critical problem of erosion of its coastal areas by the sea?

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

  1. Kerala

  2. Andhra Pradesh

  3. West Bengal

  4. Tamil Nadu

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Correct Option: A

Ravines is a common term used in Chambal valley for __________.

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

  1. Sheet erosion

  2. Gully erosion

  3. Wind erosion

  4. Rill erosion

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Correct Option: B
Explanation:

 The running water cuts through the clayey soils and makes deep channels known as gullies. The land becomes unfit for cultivation and is known as bad land. In the Chambal basin such lands are called ravines. 

The lower horizon of desert soil has deposits of ___________.

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

  1. Calcium

  2. Iron

  3. Potash

  4. Phosphorus

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Correct Option: A
Explanation:

Deserts soils are usually light coloured with minimal humus content due to which the plant productivity is low. Also the water retaining capacity is very less. However they are rich in minerals-calcium carbonate (caliche), gypsum, and/or salts.