AQA · Chemistry · 8462
GCSE Chemistry: Global climate change
Chemistry of the atmosphere · AQA GCSE Chemistry (8462), specification point 4.9.2.3. Cards are generated from the exam board's own specification for "Global climate change", and every card links back to the page it came from. Specification © AQA — used with attribution.
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What is a major cause of climate change?
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An increase in average global temperature.
An increase in average global ? is a major cause of climate change.
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temperature
Name one potential effect of global climate change on sea levels.
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Rising sea levels, caused by melting ice caps/glaciers and thermal expansion of seawater, which can lead to coastal flooding and erosion.
How might global climate change affect weather events?
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More frequent and more severe extreme weather events, such as storms, droughts and floods.
How might global climate change affect wildlife distribution?
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Changes in the distribution and migration patterns of species as habitats and temperatures shift.
How might global climate change affect food production?
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Changes in the amount, timing and distribution of rainfall and temperature reduce the food-producing capacity of some regions.
Why does thermal expansion of seawater contribute to rising sea levels?
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Water expands as it warms, so a warmer ocean takes up more volume even without any extra water being added.
Give one environmental implication of melting polar ice caps.
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Loss of habitat for species such as polar bears (and a contribution to rising sea levels).
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