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Ch 5.3 & 5.4
Ch 5.3 & 5.4 Changes in Climate & Human Activities Climate Change
Term | Definition |
---|---|
ice age | times in Earth's history during which glaciers covered large parts of the surface |
aerosol | solid particles or liquid droplets in the atmosphere |
sunspot | relatively dark, cool regions on the surface of the sun |
greenhouse gas | gases in the atmosphere that trap energy |
fossil fuel | coal, oil, or natural gas that forms over millions of years from the remains of ancient organisms, burned to release energy |
global warming | a gradual increase in the average temperature in the atmosphere, thought to be caused by an increase in greenhouse gases from human activity |