Tag: the soil

Questions Related to the soil

The factor which provides the maturity to the soil is the ___________.

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

  1. Parent rock

  2. Time

  3. Slope

  4. Vegetation

Show answer
Correct Option: D
Explanation:

Natural vegetation reflects the combined effects of relief and climate. The formation and development of soil is very much influenced by the growth of vegetation. The decayed leaf material adds much needed humus to soil thereby increasing its fertility.

The problem of land degradation can be controlled by ____________.

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

  1. Deforestation

  2. Grazing of animals

  3. Afforestation

  4. Reducing farming and cultivation of crops

Show answer
Correct Option: C
Explanation:

Afforestation and proper management of grazing can help to some extent. 

The land developed due to soil erosion is called as __________.

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

  1. Fallow land

  2. Bad land

  3. Waste land

  4. Culturable waste land

Show answer
Correct Option: B
Explanation:

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

Which soil is formed by weathering of the solidified lava?

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

  1. Red

  2. Laterite

  3. Alluvial

  4. Black

Show answer
Correct Option: D
Explanation:

Black soils are black in colour and are also known as regur soils. Black soil is ideal for growing cotton and is also known as black cotton soil. It is believed that climatic condition along with the parent rock material are the important factors for the formation of black soil. This type of soil is typical of the Deccan trap (Basalt) region spread over northwest Deccan plateau and is made up of lava flows. They cover the plateaus of Maharashtra, Saurashtra.

The reservoirs that are created on the flood plains also __________ the existing vegetation and soil leading to its decomposition over a period of time.

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

  1. Submerge

  2. Promotes

  3. Protects

  4. None of the above

Show answer
Correct Option: A
Explanation:

In recent years, multi-purpose projects and large dams have come under great scrutiny and opposition for a variety of reasons. Regulating and damming of rivers affect their natural flow causing poor sediment flow and excessive sedimentation at the bottom of the reservoir, resulting in rockier stream beds and poorer habitats for the rivers’ aquatic life. Dams also fragment rivers making it difficult for aquatic fauna to migrate, especially for spawning. The reservoirs that are created on the floodplains also submerge the existing vegetation and soil leading to its decomposition over a period of time.

Which one of the following soils is formed by capillary action?

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

  1. Regur -black cotton soil

  2. Grey and brown soil

  3. Red and black soil

  4. Saline and alkaline

Show answer
Correct Option: D
Explanation:
Saline and alkaline soils are also known as Usara soils. Various local names for saline soils are Reh, Kallar, and Chopan, Rakar, Thur, Karl etc. These soils have developed in areas with dry climatic conditions (in areas having a little more rainfall than the areas of desert soils) accompanied by lack of proper drainage. In this situation, salts of sodium, calcium and magnesium are deposited on the upper layer of the soil by capillary action.

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

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

  1. Over irrigation

  2. Deforestation

  3. Ravine erosion

  4. Overgrazing

Show answer
Correct Option: A

Which of the following schemes are meant for preventing soil erosion?

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

  1. Contour bunding

  2. Control of cattle grazing

  3. Diversions

  4. Shifting cultivation

Show answer
Correct Option: A
Explanation:

Ploughing along contours on a slope prevents soil being washed away by rainwater or by surface run off. Contours act like bunds. Terraces are levelled into step like small fields with even slope.

Which one of the following is responsible for the soil erosion in farms?

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

  1. Rivers and wind work

  2. Defective methods of farming

  3. Flowing water

  4. Moving glaciers

Show answer
Correct Option: B
Explanation:

 Ploughing in a wrong way i.e. up and down the slope form channels for the quick flow of water leading to soil erosion. 

Soil erosion caused by winds is high in the state of ______.

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

  1. Madhya pradesh

  2. Andhra pradesh

  3. Rajasthan

  4. Gujarat

Show answer
Correct Option: C
Explanation:

Wind erosion refers to the movement and deposition of soil particles by wind. It occurs when soil devoid of vegetation is exposed to high velocity of wind. Rajasthan is the region facing the highest levels of soil erosion due to the dry winds present in the region.