Environmental Studies ยท 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
What is the primary cause of droughts in India?
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Deforestation
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Climate change
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Overpopulation
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Industrialization
B
Correct answer
Explanation
Climate change is the primary cause of droughts in India, as it leads to changes in precipitation patterns and increased temperatures, resulting in reduced water availability.
What is the main cause of wetland loss in India?
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Agricultural expansion
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Urbanization
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Industrial development
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Climate change
A
Correct answer
Explanation
Agricultural expansion is the main cause of wetland loss in India, accounting for over 50% of the total loss.
Which of the following beverages is the most likely to be associated with deforestation?
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Coffee
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Tea
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Cocoa
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Sugarcane
A
Correct answer
Explanation
Coffee production is often associated with deforestation, as coffee plants require large amounts of land and water to grow. Tea, cocoa, and sugarcane production can also be associated with deforestation, but to a lesser extent than coffee.
What are the main causes of soil erosion?
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Deforestation
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Overgrazing
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Poor farming practices
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All of the above
D
Correct answer
Explanation
The main causes of soil erosion are deforestation, overgrazing, and poor farming practices. Deforestation removes the trees that help to hold soil in place, while overgrazing can lead to the loss of vegetation that protects the soil from wind and water erosion. Poor farming practices, such as plowing up and down slopes, can also accelerate soil erosion.
What are the consequences of soil erosion?
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Loss of soil fertility
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Increased flooding
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Desertification
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All of the above
D
Correct answer
Explanation
Soil erosion can have a number of negative consequences, including loss of soil fertility, increased flooding, and desertification. Loss of soil fertility can lead to lower crop yields, while increased flooding can damage infrastructure and displace people. Desertification is the process by which land becomes desert-like, and it can be caused by a combination of soil erosion and climate change.
The concept of 'Agroforestry' refers to which of the following?
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Integration of trees and shrubs into agricultural systems
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Large-scale deforestation for agricultural expansion
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Conversion of agricultural land to non-agricultural uses
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Privatization of rural services
A
Correct answer
Explanation
Agroforestry is a land management system that integrates trees and shrubs into agricultural systems. It aims to improve soil fertility, reduce erosion, and provide additional sources of income for farmers.
What is the main factor responsible for the formation of forest soil?
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High rainfall and leaching
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Low rainfall and high temperatures
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Alternating wet and dry seasons
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Presence of dense vegetation
D
Correct answer
Explanation
Forest soil is formed primarily due to the presence of dense vegetation, which contributes organic matter to the soil through the decomposition of leaves, twigs, and other plant material. This process enriches the soil with nutrients and improves its fertility.
What are the primary threats to mangrove forests?
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Deforestation for agriculture and aquaculture
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Pollution from industrial and agricultural activities
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Overexploitation of mangrove resources
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Climate change and sea-level rise
Correct answer
Explanation
Mangrove forests face multiple threats, including deforestation for agriculture and aquaculture, pollution from industrial and agricultural activities, overexploitation of mangrove resources, and the impacts of climate change and sea-level rise.
How do mangrove forests contribute to carbon sequestration?
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They absorb carbon dioxide from the atmosphere
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They store carbon in their biomass and soil
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They help reduce greenhouse gas emissions
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All of the above
D
Correct answer
Explanation
Mangrove forests contribute to carbon sequestration by absorbing carbon dioxide from the atmosphere, storing carbon in their biomass and soil, and helping reduce greenhouse gas emissions.
What is the primary environmental impact of mineral resource extraction on forest resources?
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Deforestation
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Air Pollution
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Water Pollution
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Soil Erosion
A
Correct answer
Explanation
Mineral resource extraction often requires the clearing of forests to make way for mining operations. This deforestation can have severe environmental consequences, including loss of biodiversity, soil erosion, and climate change.
What is the primary environmental impact of coal mining on forest resources?
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Air Pollution
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Water Pollution
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Deforestation
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Soil Erosion
C
Correct answer
Explanation
Coal mining often requires the clearing of forests to make way for mining operations, resulting in deforestation.
How does manganese mining affect the social fabric of forest-dependent communities?
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Displacement
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Loss of Livelihood
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Cultural Disruption
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All of the Above
D
Correct answer
Explanation
Manganese mining can lead to the displacement of forest-dependent communities, loss of traditional livelihoods, and disruption of cultural practices.
What is the main cause of deforestation in the Amazon rainforest?
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Logging
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Mining
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Agriculture
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Climate change
C
Correct answer
Explanation
Agriculture is the main cause of deforestation in the Amazon rainforest. The demand for land for cattle ranching and soybean farming is driving the destruction of the rainforest.
What are the primary causes of desertification?
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Climate change
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Overgrazing
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Deforestation
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All of the above
D
Correct answer
Explanation
Desertification is caused by a combination of factors, including climate change, overgrazing, deforestation, and unsustainable agricultural practices.
How does desertification contribute to conflict?
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It leads to competition for scarce resources.
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It displaces people and communities.
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It increases poverty and inequality.
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All of the above
D
Correct answer
Explanation
Desertification can contribute to conflict by leading to competition for scarce resources, displacing people and communities, and increasing poverty and inequality.