MCQ 171:
What is the primary environmental risk associated with mining activities?
A) Increased biodiversity
B) Habitat destruction and water pollution
C) Improved air quality
D) Enhanced soil fertility
Answer: B) Habitat destruction and water pollution
Explanation: Mining activities often lead to significant habitat destruction and can pollute nearby water sources with toxic substances.
MCQ 172:
Which of the following practices can help promote sustainable fisheries?
A) Overfishing
B) Implementing catch limits and marine protected areas
C) Increased bycatch
D) Destruction of breeding grounds
Answer: B) Implementing catch limits and marine protected areas
Explanation: Sustainable fisheries management practices, such as catch limits and marine protected areas, help ensure fish populations remain healthy and ecosystems are preserved.
MCQ 173:
What is the primary function of a nature reserve?
A) To promote urban development
B) To protect specific natural habitats and wildlife
C) To enhance industrial activities
D) To increase deforestation
Answer: B) To protect specific natural habitats and wildlife
Explanation: Nature reserves are designated areas aimed at protecting and conserving specific ecosystems and the species that inhabit them.
MCQ 174:
What is the main benefit of using biodegradable materials?
A) They increase pollution levels.
B) They can break down naturally without harming the environment.
C) They are less expensive than non-biodegradable materials.
D) They have no impact on wildlife.
Answer: B) They can break down naturally without harming the environment.
Explanation: Biodegradable materials decompose through natural processes, reducing waste and minimizing environmental impact compared to non-biodegradable materials.
MCQ 175:
What is the term for the practice of planting trees to restore deforested areas?
A) Deforestation
B) Reforestation
C) Afforestation
D) Urbanization
Answer: B) Reforestation
Explanation: Reforestation involves planting trees in areas that have been deforested to restore ecosystems and promote biodiversity.
MCQ 176:
What is the primary cause of ocean acidification?
A) Increased sunlight
B) Absorption of carbon dioxide from the atmosphere
C) Decreased ocean temperatures
D) Pollution from plastics
Answer: B) Absorption of carbon dioxide from the atmosphere
Explanation: Ocean acidification occurs when carbon dioxide from the atmosphere is absorbed by seawater, leading to decreased pH levels and harming marine life.
MCQ 177:
What is the main purpose of protected areas?
A) To promote industrial growth
B) To conserve biodiversity and natural resources
C) To increase urbanization
D) To enhance resource extraction
Answer: B) To conserve biodiversity and natural resources
Explanation: Protected areas are designated to conserve biodiversity, natural habitats, and ecosystem services, providing refuge for wildlife.
MCQ 178:
Which of the following is a major contributor to global deforestation?
A) Sustainable forestry
B) Logging for timber and paper products
C) Conservation initiatives
D) Reforestation projects
Answer: B) Logging for timber and paper products
Explanation: Logging for timber and paper production is a significant driver of deforestation, leading to habitat loss and biodiversity decline.
MCQ 179:
What is the primary goal of the Clean Air Act?
A) To promote air pollution
B) To regulate and improve air quality in the United States
C) To increase industrial emissions
D) To enhance resource extraction
Answer: B) To regulate and improve air quality in the United States
Explanation: The Clean Air Act is a comprehensive federal law aimed at regulating air emissions and improving air quality to protect human health and the environment.
MCQ 180:
Which of the following practices can help reduce carbon footprint?
A) Increased use of fossil fuels
B) Driving gasoline-powered vehicles
C) Using public transportation and renewable energy
D) Increasing consumption of single-use plastics
Answer: C) Using public transportation and renewable energy
Explanation: Utilizing public transportation and renewable energy sources can significantly reduce individual carbon footprints and greenhouse gas emissions.
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