Biodiversity quiz
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What weighs more than all other life on Earth put together?
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More questions about Biodiversity
These visible examples show the question style. LearnClash turns the full topic into ranked duels and spaced repetition.
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What is a region called only after losing 70% of its habitat?
Answer: Hotspot
Why: Conservation International's wilderness areas are the opposite: at least 70% of their original vegetation still stands.
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Where have most recorded extinctions since 1500 happened?
Answer: Islands
Why: Although islands are only about 5% of Earth's land, about 61% of extinctions recorded since 1500 happened there.
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Which cattle painkiller wiped out most of India's vultures?
Answer: Diclofenac
Why: India's vulture crash may have cost about 500,000 extra human lives from 2000 to 2005, one study estimates.
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Which tree's bark led to the invention of aspirin?
Answer: Willow
Why: Aspirin's name nods to Spiraea, the old name of meadowsweet, another plant that yields salicin.
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What share of land and sea have nations pledged to protect by 2030?
Answer: 30%
Why: Before this deal, the 2010 goal was 17% of land and 10% of the seas by 2020.
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Roughly how many more species does a tenfold larger island hold?
Answer: Twice as many
Why: The rule runs in reverse too: shrink a habitat by 90% and it can hold only about half its species in the long run.
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