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Questions and Answers
What percentage of all known plant and animal species are found in tropical rainforests?
What percentage of all known plant and animal species are found in tropical rainforests?
- Less than 20 per cent
- Around 30 per cent
- Over 70 per cent
- Over 50 per cent (correct)
How do forests help regulate global climate?
How do forests help regulate global climate?
- By absorbing and using energy from the sun (correct)
- By emitting carbon into the atmosphere
- By reflecting energy back into the atmosphere
- By reducing oxygen production
Where do most animals that inhabit deserts tend to be active?
Where do most animals that inhabit deserts tend to be active?
- At dusk and dawn
- Throughout the day and night
- During the day
- At night (correct)
What happens to desert rain in many cases?
What happens to desert rain in many cases?
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What is the primary threat to forests mentioned in the text?
What is the primary threat to forests mentioned in the text?
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Study Notes
Biodiversity and Ecosystems
- Tropical rainforests are home to around 50% of all known plant and animal species.
Forests and Climate Regulation
- Forests play a crucial role in regulating global climate by absorbing carbon dioxide and storing it in their biomass and soil.
Desert Ecosystems
- Most animals that inhabit deserts tend to be active at night, as it helps them conserve energy and water.
- In many cases, desert rain evaporates quickly or gets absorbed into the soil, making it unavailable for plants and animals.
Forest Threats
- The primary threat to forests is habitat destruction and fragmentation, mainly due to human activities such as deforestation and land conversion.
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