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 Atmosphere 3 Excess 4 Carbon dioxide 5 Drought 6 Fossil fuels 7 Greenhouse gas 8 Climate change a heavy colorless gas that is formed by burning fuels. too much of something. made from decomposing plants and animals. an area where certain plants and animals live and interact. 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. the layer of gas that surrounds the Earth, a long period of time without rain.