he natural warming of the earth that results when gases in the atmosphere trap heat from the sun that would otherwise escape into space.
greenhouse effect
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monster
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star
Double points!
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rocket
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thief
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10
Increased greenhouse means less ...................escape.
heat
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5
By using............................products, we can save the world.
eco-friendly
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10
...................comes in second in global warming pollution.
The USA
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15
Since the start of the Industrial ????, more than 2,000 billion tons of carbon dioxide have been released into the atmosphere by human activities
Revolution
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20
Without greenhouse effect, the world would be a .............., uninhabitable place, more like Mars
frozen
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monster
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star
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shark
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lifesaver
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5
We should encourage people to use.................energy sources.
renewable
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10
Rising ...................will lead to coastal flooding
sea levels
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15
Melting ................. early snowmelt, and severe droughts will cause more dramatic water shortages and increase the risk of wildfires
glaciers
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15
Every human being has to take..................against climate change.
precaution, action
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lifesaver
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rocket
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fairy
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25
thief
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10
Farm ..................pollute the air
fertilizer
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20
In the United States, the burning of ......................... to make electricity is the largest source of heat-trapping pollution, producing about two billion tons of CO2 every year