Enhanced greenhouse effect?
Reveal answer
More gases → more infrared absorbed → temperature rises.
Key words: infrared
5(d) HUMAN INFLUENCES ON THE ENVIRONMENT · RECALL
5.15 Enhanced greenhouse effect and global warming
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Consequences of global warming?
Reveal answer
Sea level rise, extreme weather, species shifts, extinction.
Key words: sea level
Why might diseases spread with warming?
Reveal answer
Vectors (mosquitoes) survive in new areas.
Key words: mosquitoes
Why does coral bleach?
Reveal answer
Warmer water → corals expel algae.
Key words: algae
What is meant by the term enhanced greenhouse effect?
Reveal answer
Extra warming caused by increased concentrations of greenhouse gases from human activity.
Key words: enhanced greenhouse effect
What is meant by the term global warming?
Reveal answer
An increase in the Earth’s mean surface temperature.
Key words: global warming
What is meant by the term climate change?
Reveal answer
Long-term change in patterns of temperature, rainfall and weather.
Key words: climate change
Consequences of global warming: for Ice melting and sea expansion, give the possible consequence and the biological effect.
Reveal answer
Possible consequence: Sea-level rise. Biological effect: Loss of coastal habitats and farmland.
Key words: Ice melting and sea expansion
Consequences of global warming: for Altered rainfall, give the possible consequence and the biological effect.
Reveal answer
Possible consequence: More drought or flooding in some regions. Biological effect: Changes in crop yields and plant distribution.
Key words: Altered rainfall
Consequences of global warming: for Warmer oceans, give the possible consequence and the biological effect.
Reveal answer
Possible consequence: Coral bleaching. Biological effect: Loss of reef biodiversity.
Key words: Warmer oceans
Consequences of global warming: for Shifting climate zones, give the possible consequence and the biological effect.
Reveal answer
Possible consequence: Species migrate towards poles or uphill. Biological effect: Some species decline or become extinct.
Key words: Shifting climate zones
Consequences of global warming: for Warmer winters, give the possible consequence and the biological effect.
Reveal answer
Possible consequence: Longer insect breeding seasons. Biological effect: Pests and disease vectors may spread.
Key words: Warmer winters
True or false, and why? “Global warming means every place gets warmer every year.”
Reveal answer
False. It refers to a long-term rise in mean global temperature; local weather varies.
True or false, and why? “Melting sea ice is the main cause of sea-level rise.”
Reveal answer
False. Floating sea ice has little effect; melting land ice and thermal expansion are the main causes.
True or false, and why? “All species will be harmed.”
Reveal answer
False. Some species may benefit or expand their range, while others decline.