MCQ 121:
What is the main cause of the increase in ocean temperatures?
A) Decreased greenhouse gas emissions
B) Climate change
C) Improved marine biodiversity
D) Enhanced solar activity
Answer: B) Climate change
Explanation: Climate change is causing increased greenhouse gas emissions, leading to higher ocean temperatures and affecting marine ecosystems.
MCQ 122:
What is the primary goal of the Biodiversity Conservation Act?
A) To promote urban development
B) To protect and recover endangered species and their habitats
C) To enhance industrial activities
D) To increase agricultural production
Answer: B) To protect and recover endangered species and their habitats
Explanation: The Biodiversity Conservation Act aims to conserve biodiversity and protect threatened species and their habitats.
MCQ 123:
Which of the following is an indicator of ecosystem health?
A) High levels of pollution
B) Diverse species populations
C) Monoculture dominance
D) Habitat destruction
Answer: B) Diverse species populations
Explanation: Healthy ecosystems are characterized by diverse species populations, which contribute to resilience and stability in ecological interactions.
MCQ 124:
What is the main purpose of wildlife conservation programs?
A) To promote hunting
B) To protect endangered species and their habitats
C) To increase resource extraction
D) To enhance urban development
Answer: B) To protect endangered species and their habitats
Explanation: Wildlife conservation programs focus on protecting endangered species and their natural habitats to prevent extinction and maintain biodiversity.
MCQ 125:
What is the term for the gradual increase in Earth’s average temperature due to human activities?
A) Ozone depletion
B) Global warming
C) Urban heat island effect
D) Deforestation
Answer: B) Global warming
Explanation: Global warming refers to the long-term increase in Earth’s average temperature as a result of human-induced greenhouse gas emissions.
MCQ 126:
Which of the following is a potential benefit of ecotourism?
A) Increased habitat destruction
B) Promotion of local economies and conservation efforts
C) Higher carbon emissions
D) Overexploitation of resources
Answer: B) Promotion of local economies and conservation efforts
Explanation: Ecotourism can benefit local economies and promote conservation by providing funding for protecting natural resources and habitats.
MCQ 127:
What is the main concern with plastic waste in the oceans?
A) Enhanced fish populations
B) Ocean acidification
C) Harm to marine wildlife through ingestion and entanglement
D) Improved water quality
Answer: C) Harm to marine wildlife through ingestion and entanglement
Explanation: Plastic waste in the oceans poses significant risks to marine wildlife, causing injury or death through ingestion and entanglement.
MCQ 128:
Which of the following practices can help mitigate climate change?
A) Deforestation
B) Use of fossil fuels
C) Renewable energy adoption
D) Increased carbon emissions
Answer: C) Renewable energy adoption
Explanation: Adopting renewable energy sources helps reduce reliance on fossil fuels, decreasing greenhouse gas emissions and mitigating climate change.
MCQ 129:
What is the significance of biodiversity hotspots?
A) They are areas with low species diversity.
B) They contain a high number of endemic species and are under threat from human activities.
C) They are protected from development.
D) They have stable ecosystems with no changes.
Answer: B) They contain a high number of endemic species and are under threat from human activities.
Explanation: Biodiversity hotspots are regions with significant levels of plant and animal species that are not found anywhere else and face imminent threats from habitat loss.
MCQ 130:
What is the primary benefit of using alternative transportation methods (e.g., biking, walking)?
A) Increased greenhouse gas emissions
B) Reduced air pollution and traffic congestion
C) Decreased physical health
D) Higher fossil fuel consumption
Answer: B) Reduced air pollution and traffic congestion
Explanation: Alternative transportation methods can help decrease air pollution, reduce traffic congestion, and promote physical health.
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