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

Multiple choice

How does deforestation contribute to the severity of natural hazards?

  1. It increases soil erosion.

  2. It disrupts the water cycle.

  3. It reduces biodiversity.

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

Deforestation contributes to the severity of natural hazards by increasing soil erosion, disrupting the water cycle, and reducing biodiversity.

Multiple choice

What is the primary cause of forest fires in India?

  1. Lightning Strikes

  2. Human Negligence

  3. Droughts

  4. Volcanic Eruptions
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Human negligence, such as unattended campfires, burning of agricultural waste, and discarding cigarette butts, is the primary cause of forest fires in India.

Multiple choice

What is the primary cause of soil erosion in India?

  1. Deforestation

  2. Overgrazing

  3. Mining Activities

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

Deforestation, overgrazing, and mining activities are the primary causes of soil erosion in India.

Multiple choice

What is the main cause of deforestation?

  1. Natural disasters

  2. Agricultural expansion

  3. Urban development

  4. Mining
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Agricultural expansion, particularly for crops such as soybeans and palm oil, is the leading cause of deforestation worldwide.

Multiple choice

Which of the following is NOT a key indicator used to monitor progress towards achieving Land Degradation Neutrality (LDN)?

  1. Land cover change

  2. Soil organic carbon content

  3. Net primary productivity

  4. Gross domestic product (GDP)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Gross domestic product (GDP) is not a key indicator used to monitor progress towards achieving Land Degradation Neutrality (LDN).

Multiple choice

Which of the following is NOT a threat to mangrove forests?

  1. Deforestation for development

  2. Pollution from industrial and agricultural activities

  3. Climate change and sea level rise

  4. Natural disasters, such as hurricanes and tsunamis
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Deforestation, pollution, and climate change are all threats to mangrove forests, while natural disasters are not.

Multiple choice

What is the primary factor driving the loss and degradation of salt marshes?

  1. Sea Level Rise

  2. Coastal Development

  3. Pollution

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

Salt marshes face threats from sea level rise, coastal development, and pollution.

Multiple choice

Mangroves are particularly effective in carbon sequestration due to their:

  1. High rate of photosynthesis

  2. Extensive root systems

  3. Ability to store carbon in their biomass

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

Mangroves excel in carbon sequestration due to their rapid growth, extensive root systems that trap sediment and organic matter, and their ability to store carbon in their biomass.

Multiple choice

Which of the following is NOT a consequence of mangrove deforestation?

  1. Increased coastal erosion

  2. Loss of biodiversity

  3. Reduced carbon sequestration

  4. Improved water quality
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Mangrove deforestation leads to increased coastal erosion, loss of biodiversity, and reduced carbon sequestration. It does not improve water quality.

Multiple choice

What is the impact of overgrazing on grasslands?

  1. Reduced biodiversity

  2. Soil erosion

  3. Increased fire risk

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

Overgrazing can have a number of negative impacts on grasslands, including reduced biodiversity, soil erosion, increased fire risk, and decreased productivity.

Multiple choice

What is the primary cause of desertification in India?

  1. Deforestation

  2. Overgrazing

  3. Climate Change

  4. Industrialization
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Deforestation is the primary cause of desertification in India, as it reduces vegetation cover and exposes the soil to erosion.

Multiple choice

What are the major economic impacts of desertification in India?

  1. Reduced agricultural productivity

  2. Loss of biodiversity

  3. Increased poverty

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

Desertification in India has multiple economic impacts, including reduced agricultural productivity, loss of biodiversity, increased poverty, and overall economic decline.

Multiple choice

What is the primary cause of coral bleaching?

  1. Increased water temperature

  2. Pollution

  3. Overfishing

  4. Climate change
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Coral bleaching occurs when corals expel the symbiotic algae living within their tissues, causing them to turn white. The primary cause of coral bleaching is elevated water temperatures, often associated with climate change.

Multiple choice

What is the primary cause of coral reef degradation in the Lakshadweep Islands?

  1. Climate change

  2. Pollution

  3. Overfishing

  4. Tourism
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Climate change, particularly rising sea temperatures, poses the most significant threat to coral reefs in the Lakshadweep Islands, leading to coral bleaching and degradation.

Multiple choice

How does agriculture contribute to climate change?

  1. Deforestation

  2. Livestock production

  3. Fertilizer use

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

Agriculture contributes to climate change through deforestation, livestock production, and fertilizer use. Deforestation releases carbon dioxide into the atmosphere, while livestock production and fertilizer use release methane and nitrous oxide, respectively.