Matching Pairs The Causes and Effects of Climate ChangeOnline version Matching the words with their definitions. by LAURA MICHELLE JIMENEZ PAZMINO 1 Greenhouse gas 2 Drought 3 Climate change 4 Excess 5 Ecosystem 6 Fossil fuels 7 Carbon dioxide 8 Atmosphere the layer of gas that surrounds the Earth, a long period of time without rain. too much of something. an area where certain plants and animals live and interact. a heavy colorless gas that is formed by burning fuels. a gas that traps heat from the sun, a long-term change in the average weather patterns that have come to define Earth's local, regional and global climates. made from decomposing plants and animals.