Environmental Studies · Geography

Deforestation and Land Degradation

2,619 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 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

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.

Multiple choice geography secondary sector : industry generation of electricity exploration and conservation of minerals irrigation and power

Deforestation is caused due to _____.

  1. Grazing

  2. Mining

  3. Cultivation

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

The cutting down of trees and clearing off the forests is known as deforestation. Deforestation is caused due to following reasons:- 

  • Requirement of more land for housing and urbanization
  • Harvesting timber to create commercial items such as paper, furniture and homes
  • Cattle grazing
  • Mining activities
  • Cultivation
  • Burning trees and clear cutting

Multiple choice evs - i the environment and us pollution of soil degradation of land damaging the forests

Which of the following is an effect of deforestation?

  1. Water pollution

  2. Greenhouse effect

  3. Outbreak of diseases

  4. Extinction of aquatic life
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

If deforestation is performed, there will be no trees so, the amount of the greenhouse gasses will increase in the atmosphere. These greenhouse gasses trap heat from the infrared radiation in the atmosphere and increases the atmosphere's temperature i.e, global warming. 

Thus, the correct answer is option B. 

Multiple choice zoology soil pollution pollution of soil degradation of land damaging the forests

All of these are a result of land degradation except 

  1. Soil erosion

  2. Extinction of plant species

  3. Endangered animals

  4. Clear cutting forests

  5. Ozone depletion
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Land degradation is the loss in quality of natural land areas due to pollution.
A. Due to land degradation, there is deterioration in soil structure due to which soil particles can't bind to each other tightly. Hence there is soil erosion i.e. removal of upper fertile layer of soil due to flood, wind or any other natural calamity.
B. Due to land degradation, many plant species have become extinct because there is loss of soil nutrients which are essential for plants growth.
C. Animals are getting endangered as their habitat is also being lost due to land degradation.
D. Clear cutting of forests doesn't occur due to land degradation. It's the activity of mankind.
E. Ozone layer depletion occurs due to the halo compounds that are released from the degrading land.
Hence, clear cutting forests is not the result of land degradation.
So, the correct answer is 'Clear cutting forests'.