Environmental Studies ยท 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
How can afforestation help mitigate land degradation and improve air quality?
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It reduces soil erosion.
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It absorbs carbon dioxide and releases oxygen.
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It provides habitat for wildlife.
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All of the above
D
Correct answer
Explanation
Afforestation can address multiple aspects of land degradation and air quality.
What is the primary cause of desertification?
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Deforestation
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Overgrazing
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Climate Change
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All of the above
D
Correct answer
Explanation
Desertification can be caused by a combination of deforestation, overgrazing, and climate change.
Which of the following is NOT a consequence of desertification?
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Loss of biodiversity
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Increased soil erosion
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Reduced agricultural productivity
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Improved water quality
D
Correct answer
Explanation
Desertification typically leads to a decline in water quality, not an improvement.
What is the primary cause of deforestation in the Himalayan region?
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Agricultural Expansion
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Logging
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Urbanization
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Climate Change
A
Correct answer
Explanation
Agricultural expansion is the leading cause of deforestation in the Himalayan region, as forests are cleared for farming and grazing.
Which of the following is a major threat to grasslands in India?
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Overgrazing
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Deforestation
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Urbanization
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Climate Change
A
Correct answer
Explanation
Overgrazing by livestock is a significant threat to grasslands, leading to degradation and loss of biodiversity.
What is the primary cause of land degradation?
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Deforestation
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Overgrazing
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Climate Change
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Mining
A
Correct answer
Explanation
Deforestation, the clearing of forests, is a major cause of land degradation as it removes vegetation cover, leading to soil erosion, loss of biodiversity, and disruption of ecosystem services.
How does overgrazing contribute to land degradation?
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Compaction of soil
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Reduction in soil organic matter
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Increased soil erosion
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All of the above
D
Correct answer
Explanation
Overgrazing leads to compaction of soil, reduction in soil organic matter, and increased soil erosion, all of which contribute to land degradation.
Which of the following is a consequence of land degradation?
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Loss of biodiversity
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Reduced agricultural productivity
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Desertification
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All of the above
D
Correct answer
Explanation
Land degradation can lead to loss of biodiversity, reduced agricultural productivity, and desertification, among other negative consequences.
How can afforestation help prevent land degradation?
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It reduces soil erosion
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It improves soil fertility
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It enhances water infiltration
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All of the above
D
Correct answer
Explanation
Afforestation, the planting of trees in areas that have been deforested, can help prevent land degradation by reducing soil erosion, improving soil fertility, and enhancing water infiltration.
What are the main causes of desertification?
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Climate change
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Overgrazing
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Deforestation
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Poor land management practices
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All of the above
E
Correct answer
Explanation
Desertification is caused by a combination of factors, including climate change, overgrazing, deforestation, and poor land management practices.
What are the consequences of desertification?
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Loss of biodiversity
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Loss of soil fertility
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Loss of water resources
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Increased poverty
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All of the above
E
Correct answer
Explanation
Desertification has a number of negative consequences, including loss of biodiversity, loss of soil fertility, loss of water resources, and increased poverty.
What can be done to prevent desertification?
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Reduce climate change
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Reduce overgrazing
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Reduce deforestation
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Improve land management practices
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All of the above
E
Correct answer
Explanation
Desertification can be prevented by taking a number of steps, including reducing climate change, reducing overgrazing, reducing deforestation, and improving land management practices.
How does land use affect soil health?
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It can lead to soil erosion
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It can reduce soil organic matter
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It can increase soil salinity
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All of the above
D
Correct answer
Explanation
Land use can lead to soil erosion, reduce soil organic matter, and increase soil salinity.
Which of the following is a major cause of deforestation?
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Agriculture
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Logging
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Mining
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Urbanization
A
Correct answer
Explanation
Agriculture, particularly the clearing of forests for farming and grazing, is a major cause of deforestation.
Which of the following is NOT a primary cause of land degradation?
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Deforestation
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Overgrazing
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Climate Change
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Natural Disasters
D
Correct answer
Explanation
Natural disasters such as earthquakes, floods, and volcanic eruptions can cause land degradation, but they are not primary causes. Deforestation, overgrazing, and climate change are human-induced activities that are the main drivers of land degradation.