7.10B What is Biodiversity? Video

What does biodiversity encompass?

• The total variety of life on Earth

• Only the variety of plants on Earth

• Only the different species of animals

• Only the ecosystems in oceans

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What role do forests play in maintaining biodiversity?

• They block away carbon and stabilize the climate

• They have no role

• They only provide habitats for animals

• They increase carbon emissions

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Why is biodiversity crucial for Earth's climate?

• It provides entertainment

• It stabilizes Earth's climate

• It increases pollution

• It has no significant impact

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What has caused the dramatic reduction in biodiversity?

• Unknown reasons

• Human activities

• Natural disasters

• Alien invasions

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By what percentage have populations of wild animals reduced?

• 90%

• 60%

• 30%

• 75%

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How much has the number of lions in Africa dropped?

• 65%

• 80%

• 30%

• 45%

What is as important an issue as climate change?

• Economic growth

• Biodiversity loss

• Technological advancements

• Space exploration

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