Tag: soil erosion and conservation

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Questions Related to soil erosion and conservation

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

Which one of the following methods is most appropriate to check soil erosion on steep slopes?

  1. Shelter belts

  2. Mulching

  3. Terrace cultivation

  4. Multi-river project
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The most appropriate method to verify soil erosion on steep slopes is terrace cultivation.Terrace farming is a method of farming whereby “steps” known as terraces are built onto the slopes of hills and mountains. When it rains, instead of rain carrying away the soil nutrients and plants down the slope, they flow to the next terrace. Every step has an outlet which channels water to the next step.

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

Which one of the following is the main cause of land degradation in Punjab?

  1. Intensive cultivation

  2. Deforestation

  3. Over irrigation

  4. Overgrazing
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Over irrigation is main cause of land degradation in Punjab due to waterlogging leading to increase in salinity and alkalinity in the soil. Punjab, Haryana, Uttar Pradesh are the states facing issue of land degradation.

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

The main reason for land degradation in Uttar Pradesh is __________.

  1. Mining

  2. Excessive irrigation

  3. Salinity

  4. Dense population
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In the states of Punjab, Haryana, western Uttar Pradesh, over irrigation is responsible for land degradation due to waterlogging leading to increase in salinity and alkalinity in the soil. 

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

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

  1. Over irrigation

  2. Deforestation

  3. Ravine erosion

  4. Overgrazing
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In Punjab and Haryana, intensive agriculture and the use of canal systems have led to significant over-irrigation, which causes waterlogging and soil salinity, damaging the soil.

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

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.

  1. Only I, II and III

  2. Only II and III

  3. Only I, II and IV

  4. Only II, III and IV
Reveal answer Fill a bubble to check yourself
D Correct answer
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.

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

Which of the following is/are methods of checking soil erosion?
$1$. Strip cropping
$2$. Contour ploughing
$3$. Use of irrigation and fertilisers
$4$. Terrace farming.

  1. $1$ and $2$
  2. $3$ and $4$
  3. $2, 3$ and $4$
  4. $1, 2, $ and $4$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • Ploughing along the contour lines can decelerate the flow of water down the slopes. This is called contour ploughing. 
  • Steps can be cut out on the slopes making terraces. Terrace cultivation restricts erosion. 
  • Large fields can be divided into strips. Strips of grass are left to grow between the crops. This breaks up the force of the wind. This method is known as strip cropping. Strip cropping method reduce the soil erosion
Multiple choice geography the soil soil erosion (geo) soil erosion, soil conservation and uses of soil soil erosion and conservation

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

  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
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In India, ravine erosion and gullies cause the most severe and widespread damage to land, followed by issues like alkalinity, salinity, and water-logging.

Multiple choice general knowledge the soil soil erosion (geo) soil erosion, soil conservation and uses of soil soil erosion and conservation

The cutting of forests leads to

  1. Soil erosion and incontrollable floods

  2. Desilting and denaturation

  3. Increase of rainfall and humidity

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Deforestation removes the root systems that hold soil in place and the canopy that intercepts rainfall, leading to increased surface runoff, soil erosion, and flooding.