Relier Pairs The Causes and Effects of Climate ChangeVersion en ligne Matching the words with their definitions. par LAURA MICHELLE JIMENEZ PAZMINO 1 Ecosystem 2 Fossil fuels 3 Carbon dioxide 4 Climate change 5 Drought 6 Excess 7 Greenhouse gas 8 Atmosphere a heavy colorless gas that is formed by burning fuels. a gas that traps heat from the sun, a long period of time without rain. too much of something. the layer of gas that surrounds the Earth, an area where certain plants and animals live and interact. 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.