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Answer Key
Grade 8 Science: Weather, Climate & Human Impact on Climate
1.
Weather
2.
Climate
3.
greenhouse
4.
greenhouse
5.
fossil
6.
carbon dioxide/CO₂
7.
decades/thirty or more
8.
weather/climate
9.
weather is short-term atmospheric conditions; climate is long-term average patterns
10.
certain gases trap outgoing infrared radiation, warming the lower atmosphere
11.
burning fossil fuels, deforestation, industrial processes
12.
sea level rise, extreme weather, ecosystem shifts (any valid)
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