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
Which of the following is NOT a factor that affects the supply of forest products?
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Timber prices
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Forest management practices
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Government regulations
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Consumer preferences
D
Correct answer
Explanation
Consumer preferences affect demand, not supply.
Which of the following is NOT a major driver of deforestation?
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Agriculture expansion
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Urbanization
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Climate change
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Forest fires
C
Correct answer
Explanation
Climate change is not a direct driver of deforestation, but it can contribute to forest degradation.
The concept of REDD+ stands for:
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Reducing Emissions from Deforestation and Forest Degradation
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Reforestation and Afforestation
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Sustainable Forest Management
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All of the above
A
Correct answer
Explanation
REDD+ is an international mechanism to reduce emissions from deforestation and forest degradation.
How does agroforestry contribute to carbon sequestration?
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Trees and shrubs absorb carbon dioxide from the atmosphere
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Agroforestry systems improve soil organic matter
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Agroforestry systems reduce soil erosion
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All of the above
D
Correct answer
Explanation
Agroforestry systems contribute to carbon sequestration through a combination of mechanisms, including trees and shrubs absorbing carbon dioxide from the atmosphere, improving soil organic matter, and reducing soil erosion.
What are some of the benefits of forest soils?
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They are good for plant growth.
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They help to regulate the water cycle.
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They help to store carbon.
Correct answer
Explanation
Forest soils are good for plant growth, they help to regulate the water cycle, and they help to store carbon.
What are some of the threats to forest soils?
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Deforestation
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Erosion
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Pollution
Correct answer
Explanation
Deforestation, erosion, and pollution are all threats to forest soils.
How can we protect forest soils?
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Reduce deforestation.
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Control erosion.
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Reduce pollution.
Correct answer
Explanation
We can protect forest soils by reducing deforestation, controlling erosion, and reducing pollution.
What is the primary cause of droughts in India?
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Deforestation
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Climate Change
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Lack of Irrigation
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Overpopulation
B
Correct answer
Explanation
Climate change is the primary cause of droughts in India, leading to erratic rainfall patterns and prolonged dry spells.
What is the primary cause of coral bleaching?
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Increased water temperature
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Pollution
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Overfishing
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Climate change
A
Correct answer
Explanation
Coral bleaching is primarily caused by increased water temperature, which is often a result of climate change. When water temperatures rise, corals expel the symbiotic algae that live in their tissues, causing them to turn white and become more susceptible to disease and death.
What is the primary cause of the increased vulnerability of crops to climate change?
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Deforestation
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Urbanization
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Industrialization
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Population growth
A
Correct answer
Explanation
Deforestation is the primary cause of the increased vulnerability of crops to climate change. Forests play a crucial role in regulating the climate by absorbing carbon dioxide, releasing oxygen, and providing shade. Deforestation reduces the ability of forests to perform these functions, leading to an increase in greenhouse gas concentrations and a rise in global temperatures, which in turn makes crops more vulnerable to climate change.
Which human activity is the leading cause of deforestation worldwide?
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Agriculture
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Mining
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Urbanization
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Forest fires
A
Correct answer
Explanation
Agriculture, particularly the expansion of cropland and grazing land, is the primary driver of deforestation globally.
Which type of agriculture is often associated with deforestation in tropical regions?
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Subsistence farming
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Commercial farming
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Organic farming
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Permaculture
B
Correct answer
Explanation
Commercial farming, particularly the cultivation of cash crops like soybeans, palm oil, and beef, is a major contributor to deforestation in tropical regions.
What are the primary consequences of deforestation for biodiversity?
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Loss of habitat for plant and animal species
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Extinction of species
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Disruption of ecological interactions
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All of the above
D
Correct answer
Explanation
Deforestation leads to the loss of habitat for numerous plant and animal species, which can result in their extinction. It also disrupts ecological interactions, such as those between predators and prey, and alters the functioning of ecosystems.
Which of the following is NOT a major driver of deforestation in tropical regions?
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Agriculture
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Mining
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Logging
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Climate change
D
Correct answer
Explanation
While climate change can have indirect effects on deforestation, such as through changes in rainfall patterns, it is not a direct driver of deforestation in the same way that human activities like agriculture, mining, and logging are.
Which of the following is NOT a potential benefit of agroforestry?
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Increased crop yields
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Improved soil fertility
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Reduced erosion
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Increased deforestation
D
Correct answer
Explanation
Agroforestry is generally seen as a sustainable land management practice that can provide a range of benefits, including increased crop yields, improved soil fertility, and reduced erosion. It does not directly contribute to deforestation.