Tag: exogenic processes part-2

Questions Related to exogenic processes part-2

Mulching is associated with use of ________________.

geography exogenic processes part-2 the soil soil erosion (geo) soil erosion, soil conservation and uses of soil

  1. material to maintain soil moisture

  2. soil to build barrier.

  3. trenches to collect water.

  4. pilled up rocks to slow down the flow of water.

Show answer
Correct Option: A
Explanation:

A mulch is a layer of material applied to the surface of an area of soil. Its used for the following purposes:
1. to conserve moisture.
2. to improve the fertility of the soil.
3. to reduce weed growth.

It is important to make small check dams across the flooded gullies because they-
(i)   hold water for irrigation.
(ii)  hold water and prevent soil erosion.
(iii)  recharge ground water.

(iv)  hold water permanently.
Select the correct options from the above stated reasons-

geography exogenic processes part-2 the soil soil erosion (geo) soil erosion, soil conservation and uses of soil

  1. (i) and (iv)

  2. (ii) and (iii)

  3. (iii) and (iv)

  4. (ii) and (iv)

Show answer
Correct Option: B
Explanation:

A check dam is a small, often temporary, dam constructed across a swale, drainage ditch, or waterway to counteract erosion by reducing water flow velocity.

The most important cause of soil erosion is __________.

geography exogenic processes part-2 the soil soil erosion (geo) soil erosion, soil conservation and uses of soil

  1. Rain

  2. Wind

  3. Deforestation

  4. Overgrazing

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Correct Option: A

Which of the following is not used for preventing soil erosion?

geography exogenic processes part-2 the soil soil erosion (geo) soil erosion, soil conservation and uses of soil

  1. Afforestation

  2. Reclamation of ravine lands

  3. Terracing

  4. Deforestation

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Correct Option: D

The removal of top soil by water or wind is called ___________.

geography exogenic processes part-2 the soil soil erosion (geo) soil erosion, soil conservation and uses of soil

  1. Soil wash

  2. Soil erosion

  3. Soil creep

  4. Silting of soil

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Correct Option: B

A small coloured paper pellet is put in a beaker half-filled with water.
The beaker is placed on a tripod stand and heated.
As the water warms, the pellet moves upwards with the warm column of water and sinks back along the cool column of water.
Identify this movement:

geography exogenic processes part-2 the soil soil erosion (geo) soil erosion, soil conservation and uses of soil

  1. Molten magma inside the earth

  2. earth's magma inside the earth

  3. Energy flow from one trophic level to another

  4. Hydrological cycle

Show answer
Correct Option: D
Explanation:

The water cycle also known as the hydrological cycle describes the continues movement of water on, above and below the surface of the earth. Although the balance of water on Earth remains fairly constant over time, individual water molecules can come and go, in and out of the atmosphere. In doing so, the water goes through different phase liquid, solid (ice) and gas (vapor).

Radial pattern of drainage has _______.

geography exogenic processes part-2 the soil soil erosion (geo) soil erosion, soil conservation and uses of soil

  1. right angles structure.

  2. jointly rock terrain.

  3. dome like structure.

  4. branch like structure.

Show answer
Correct Option: C
Explanation:

Radial pattern of drainage has dome like structure.
It is a drainage pattern in which consequent streams radiate or diverge outward, like the spokes of a wheel, from a high central area; it is best developed on the slopes of a young, unbreached dome like structure or of a volcanic cone.

Delta formed by Ganga-Brahmaputra in India is __________.

geography exogenic processes part-2 the soil soil erosion (geo) soil erosion, soil conservation and uses of soil

  1. Sundri delta.

  2. Sunderban delta.

  3. Chandrabhaga delta.

  4. Sansa delta.

Show answer
Correct Option: B
Explanation:

Delta formed by Ganga-Brahmaputra in India is Sunderban Delta.
The Ganges-Brahmaputra Delta (also known as the Brahmaputra Delta, the Sundarbans Delta or the Bengal Delta) is a river delta in the Bengal region of the Indian subcontinent, consisting of Bangladesh and the Indian state of West Bengal.