Biodiversity

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What is the definition of biodiversity?
The variety of different organisms on the earth or in an ecosystem.
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Why is it important to maintain biodiversity?
economic, medical, moral and aesthetic
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How are humans putting biodiversity under threat?
landfill waste, urbanisation, monoculture
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What is causing pollution in our rivers?
fertilizer run off, sewage and chemical toxins
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What is eutrophication?
When fertilizers run off into the river and cause algal blooms and death of an ecosystem.
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What is a peat bog?
A slow decaying ecosystem formed from dead plants and animals that trap carbon.
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What do peat bogs do?
burn to generate electricity and are used as compost to help farmers increase crop yields
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Why is deforestation occuring?
to grow crops like rice and biofuels, to provide land for grazing cattle, and to provide land for new towns and cities
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What crop can be used to power cars instead of petrol?
biofuels
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What gas does the burning of peat bogs give off?
carbon dioxide
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What environmental problem does the burning of peat bogs contribute to?
global warming
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What gas is released from power stations and could cause acid rain?
sulphur dioxide
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Other cards in this set

Card 2

Front

Why is it important to maintain biodiversity?

Back

economic, medical, moral and aesthetic

Card 3

Front

How are humans putting biodiversity under threat?

Back

Preview of the front of card 3

Card 4

Front

What is causing pollution in our rivers?

Back

Preview of the front of card 4

Card 5

Front

What is eutrophication?

Back

Preview of the front of card 5
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