Environmental Studies · Geography

Deforestation and Land Degradation

2,532 Questions

Deforestation and land degradation address the environmental impacts of human activities on natural ecosystems. Key areas include soil erosion, forest fires, and the consequences of overgrazing. These subjects frequently appear in the geography and environmental science sections of competitive exams.

Causes of deforestationForest fires consequencesSoil erosion factorsDesertification impactsAgroforestry benefitsReforestation advantages

Deforestation and Land Degradation Questions

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

Soil erosion can be reduced by

  1. Grazing cattle

  2. Deforestation

  3. Using renewable resources

  4. Contour ploughing

  5. Increasing biodiversity
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
A. Grazing cattle can promote soil erosion because as the cattle eat the vegetation, the soil particles loosen and can be easily carried away by wind, water etc.
B. Deforestation leads to soil erosion because roots of the plants held the soil particles tightly and if there will be no trees, the soil particles will be loosened and can be easily carried away by wind or water.
C. Using renewable resources has no effect on soil erosion as renewable sources are the sources that can be replenished naturally over a period of time.
D. Contour ploughing is the ploughing of land according to its contour or slope to prevent soil erosion.
E. Increasing biodiversity will promote soil erosion as more organisms will be there which will feed on vegetation and this will cause the same effect as that of grazing cattle.
Hence, soil erosion can be reduced by Contour Ploughing.
So, the correct answer is 'Contour ploughing'.
Multiple choice biology the soil soil erosion (geo) soil erosion, soil conservation and uses of soil soil erosion and conservation

In our country, large patches of forests are being cleared for cultivation of crops. The environmental impact of such a practice will lead to

  1. Soil erosion

  2. Soil conservation

  3. Soil pollution

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

Soil erosion is washing away or blowing away the top layer of the soil. Plants in the forests are big and are present near to each other. During rain or wind, forest plants prevent the top layer of soil to be cleared. These plants keep the soil intact within their roots and do not let it to blow or washed away. But when such plants are cleared, nothing stops the wind or water to blow away or wash away the top soil layer. This leads to soil erosion. 

Multiple choice geography mineral resources in rajasthan climate and season cycle climate, soil, natural vegetation and animals of rajasthan study of rocks and soil formation position of rajasthan in indian economy

What is meant by desertification?

  1. Land with high temperature

  2. Land with low rainfall

  3. Fertile land becoming barren and sandy due to physical and human activities

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Desertification is a type of land degradation in which a relatively dry area of land becomes a desert, typically losing its bodies of water as well as vegetation and wildlife.

Multiple choice economics sustainable development with equity introduction to social movements and its types social movements liberalisation

Deforestation has led to decrease in rainfall due to alterations in the hydrological cycle.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Due to extensive cultivation, the increasing area under cultivation is increasing which results in a large amount of forest depletion that leads to deforestation. This deforestation has led to decrease in rainfall due to alterations in the hydrological cycle.

Multiple choice civics public health and the government role of the government in health food security and related aspects food security

Which of the following are the factors responsible for the depletion of water table?

  1. Deforestation

  2. Urbanisation

  3. Population rise

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Water table refers to the Groundwater. Depletion of water table means scarcity of the groundwater. The Population rise led to the increasing demand for water and for settlement and establishment forests are being cut which is resulting in depletion of water table. The lands have been acquired for building or expanding cities which ultimately decreasing groundwater reservoir.

Multiple choice biology living in harmony climate factors abiotic components organisms and environment

Soil erosion can occur due to

  1. Rains or floods

  2. High velocity winds

  3. Deforestation

  4. All the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Soil is made up of many layers, forming soil profile. The uppermost layer of soil is made up of sandy soil that withers away quickly under the effect of blowing wind, flowing water in the form of rains or floods. Apart from this, trees hold the soil particles together with the help of their roots. Deforestation activities lead to a decrease in the number of trees resulting in an increase in the rate of soil erosion.

So, option D "All of the Above" is the correct answer.

Multiple choice evs - i rules are for everyone sustainability of natural resources adaptations - mangrove swamps, fast flowing rivers and treetops halophiles

Chipko Andolan (movement), which was started in 1973 in Garhwal/Himalayas (Gopeshwar) near Alaknanda river was for the first time initiated by

  1. Chandi Prasad Bhatt

  2. Vinoba Bhave

  3. Baba Amte

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

The popular 'Chipko Andolan' was started in 1973 in Gopeshwar, U.P. when trees were not allowed to be cut by village folk by hugging them first near village Manda, then Rampur Phata and in 1974 near village Reni (led by Gaura Devi). The movement had two leaders, Chandi Prasad Bhatt of Gopeshwar and Sunder Lal Bahugana of Silyara in Tehri region. 

Multiple choice evs - i rules are for everyone sustainability of natural resources adaptations - mangrove swamps, fast flowing rivers and treetops halophiles

Forests participate in

  1. Controlling pollution

  2. Prevention of soil erosion

  3. Maintenance of ecological balance

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Forests have three important types of function as following :

  1. Productive functions (or economic uses) - Forests provide a number of articles of economic use e.g : wood, resins, alkaloids etc.
  2. Protective functions (or ecological uses) - Forest provide protection from radiation, heat, noise, besides providing protection against pollution and soil erosion.
  3. Regulative functions - Forests helps maintain ecological balance by participating in biogeochemical cycles, checking flood and droughts etc.

Multiple choice evs - i rules are for everyone sustainability of natural resources adaptations - mangrove swamps, fast flowing rivers and treetops halophiles

Forests take part in

  1. Control of atmospheric pollution

  2. Prevention of soil erosion

  3. Maintenance of natural balance

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Forests have following important types of function-

  1. Productive functions- forests provide a number of articles of economic use e.g., wood, resins, alkaloids, medicines etc.
  2. Protective functions- forest provide protection from radiation, heat, noise, besides providing protection against pollution and soil erosion, maintaining food chains and webs and thus maintaining ecological balance.
  3. Regulative functions- forests helps maintain ecological balance by participating in biogeochemical cycles, checking flood and droughts etc. 

Multiple choice biology air and water pollution control environmental impact: global warming green house effect geobiochemical cycle

The main reasons for deforestation are:

  1. rapid increase in the population of human beings and their livestock

  2. urbanization and human settlements

  3. cutting down of trees for obtaining fuel

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The main reasons for deforestation are-rapid increase in the population of human beings and their livestock, urbanization and human settlements, cutting down of trees for obtaining fuel.

Multiple choice chemistry air and water pollution control environmental impact: global warming green house effect geobiochemical cycle

Deforestation leads to an increase in the amount of $CO _2$ in the air:

  1. because the number of trees which consume $CO _2$ is increased
  2. because the number of trees which consume $CO _2$ is reduced
  3. because the number of trees which fix $CO _2$ is reduced

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Deforestation leads to an increase in the amount of $CO _2$ in the air because the number of trees which consume $CO _2$ is reduced.

Multiple choice biology air and water pollution control environmental impact: global warming green house effect geobiochemical cycle

What causes the global warming?

  1. Burning of fossil fuels

  2. Deforestation

  3. Industrialization

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Global warming is the slow increase in the average temperature of the earth’s atmosphere because an increased amount of the energy 
All the given activities increases the amount of green house gases in the atmosphere and hence global warming.

Multiple choice evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation

Urbanization, Illegal logging, Agriculture, Subsistence Farming are the causes of ______.

  1. water depletion

  2. forest depletion

  3. both A and B

  4. none of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Both $A$ and $B$ are the results of Urbanization, Illegal logging, Agriculture, Subsistence Farming. 

Water depletion, a term often defined as long-term water-level decline caused by sustained groundwater pumping, is a key issue associated with groundwater use.

Deforestation, clearance or clearing is the removal of a forest. 

Examples of deforestation include conversion of forestland to farms, ranches, or urban use. 

The most concentrated deforestation occurs in tropical rainforests.


Hence the option C is correct.