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GCSE Biology Paper 2
Maintaining Biodiversity
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Sihaam
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Cards (24)
What is biodiversity?
Variety of all different
species
of organisms
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Why is a rich biodiversity important?
Helps to make
ecosystems
more stable
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What is the first way mentioned to reduce the negative effects of humans on biodiversity?
Using
breeding programs
for
endangered species
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How do zoos contribute to breeding programs?
By lending their
animals
to other zoos
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What type of habitat is shown that has a very high level of biodiversity?
Wetland
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Why were many wetlands drained over the last century?
To
grow
crops
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What is happening to some drained wetlands in some parts of the country?
They are now being
refloated
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Why is the protection and regeneration of wetland habitats important?
For preserving
biodiversity
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Where is biodiversity generally very low?
On farms
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Why is biodiversity low on farms?
Farmers
grow large
fields
of one crop
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What do farmers leave around fields to allow wild plants and animals to live?
Field margins
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What else do farmers plant between fields to help preserve biodiversity?
Hedgerows
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How do field margins and hedgerows help to preserve biodiversity?
They
provide
habitats
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Who else plays a really important role in maintaining biodiversity?
Governments
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What are two ways habitats are being destroyed?
Deforestation
and
global warming
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What has the Brazilian government established to protect the Amazon rainforest?
National parks
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What are governments around the world doing to reduce carbon dioxide emissions?
Taking
action
to reduce
emissions
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What renewable method is used in the UK to generate a large proportion of electricity?
Wind power
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How does reducing deforestation and carbon dioxide emissions help biodiversity?
It
reduces
the
loss
of
biodiversity
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What is one way individuals can make a contribution to maintaining biodiversity?
By recycling
waste materials
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Why does dumping waste into landfills destroy habitats?
It covers and
pollutes
the land
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How does recycling waste materials have a positive effect on biodiversity?
Fewer
habitats
are
destroyed
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Where can you find plenty of questions on reducing the loss of biodiversity?
In my
revision
workbook
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Which method has the Brazilian government used to try and maintain Biodiversity in the Amazon rainforest?
Established
national parks
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