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 does land degradation contribute to conflict in the Senegal River Basin?
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It reduces agricultural productivity.
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It leads to soil erosion.
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It increases the risk of flooding.
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All of the above
D
Correct answer
Explanation
Land degradation in the Senegal River Basin is reducing agricultural productivity, leading to soil erosion, and increasing the risk of flooding, all of which can contribute to conflict.
How does deforestation contribute to conflict in the Senegal River Basin?
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It reduces the availability of timber and other forest products.
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It leads to soil erosion.
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It increases the risk of flooding.
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All of the above
D
Correct answer
Explanation
Deforestation in the Senegal River Basin is reducing the availability of timber and other forest products, leading to soil erosion, and increasing the risk of flooding, all of which can contribute to conflict.
What is the primary cause of deforestation in India?
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Urbanization
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Mining
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Agriculture
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Forest Fires
C
Correct answer
Explanation
Agriculture is the primary cause of deforestation in India, as forests are cleared to make way for cropland and grazing land.
Which of the following is a major cause of soil degradation in India?
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Overgrazing
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Deforestation
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Intensive Irrigation
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All of the above
D
Correct answer
Explanation
Soil degradation in India is caused by a combination of overgrazing, deforestation, and intensive irrigation, which lead to soil erosion, loss of soil fertility, and salinization.
What was the primary cause of the decline of the Indus Valley Civilization?
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Climate change
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Deforestation
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Invasion
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All of the above
D
Correct answer
Explanation
The decline of the Indus Valley Civilization is believed to have been caused by a combination of factors, including climate change, deforestation, and invasion.
Which of the following is NOT a benefit of sustainable forest management?
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Reduced soil erosion
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Improved water quality
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Increased biodiversity
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Higher timber production
D
Correct answer
Explanation
While sustainable forest management can lead to higher timber production in some cases, it is not always the primary goal. The focus is on long-term sustainability rather than maximizing production.
Which human activity is a major contributor to coastal erosion?
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Agriculture
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Forestry
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Urban development
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Mining
C
Correct answer
Explanation
Urban development, particularly the construction of coastal infrastructure such as seawalls and jetties, can disrupt natural sediment transport patterns and exacerbate coastal erosion.
The Dust Bowl of the 1930s in the United States was primarily caused by:
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Overgrazing
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Deforestation
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Drought
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All of the above
D
Correct answer
Explanation
The Dust Bowl was a severe drought that affected the Great Plains region of the United States in the 1930s. It was caused by a combination of factors, including overgrazing, deforestation, and drought.
Which environmental change is believed to have contributed to the collapse of the Anasazi civilization in the American Southwest?
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Drought
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Deforestation
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Soil Erosion
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Climate Change
A
Correct answer
Explanation
A prolonged drought in the 13th century is thought to have been a major factor in the collapse of the Anasazi civilization, leading to crop failures and the abandonment of settlements.
Which of the following is NOT a benefit of sustainable forestry?
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Reduced soil erosion
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Improved water quality
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Increased carbon sequestration
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Increased risk of forest fires
D
Correct answer
Explanation
Sustainable forestry practices actually help to reduce the risk of forest fires by maintaining healthy forests that are less susceptible to burning.
Which of the following is NOT a threat to forests?
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Deforestation
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Climate change
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Pollution
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Sustainable forestry
D
Correct answer
Explanation
Sustainable forestry is a set of practices that aim to protect forests and ensure their long-term health, so it is not a threat to forests.
Which of the following is a method used to mitigate the visual impact of limestone quarrying?
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Revegetation
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Landscaping
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Screening
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All of the above
D
Correct answer
Explanation
All of the above methods can be used to mitigate the visual impact of limestone quarrying.
What is the impact of food production on the environment?
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It can lead to deforestation
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It can contribute to climate change
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It can pollute water and soil
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All of the above.
D
Correct answer
Explanation
Food production can have a negative impact on the environment, including deforestation, climate change, and water and soil pollution.
What is the primary driver of changes in riverine systems?
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Climate Change
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Land Use Changes
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Urbanization
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Deforestation
A
Correct answer
Explanation
Climate change is the primary driver of changes in riverine systems, as it alters precipitation patterns, temperature, and sea level, which in turn affect river discharge, sediment transport, and aquatic ecosystems.
What is the primary cause of land degradation?
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Deforestation
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Overgrazing
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Soil erosion
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Climate change
C
Correct answer
Explanation
Soil erosion is the primary cause of land degradation, accounting for over 80% of all degraded land.