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Extra resources for Protecting Ecosystems

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S the food coloring mixes with a larger amount of water, the color is harder to see. his is like what happens with water pollution. hen waste is first dumped in a river, you can see it. s it flows downstream the waste is diluted. his means its strength is lessened. his is because the pollution mixes in with more water. fter a while, the waste can barely be seen. owever, it is still there polluting the river. hen you choose a tree, you must pick one that will grow well in that environment. he most important things to consider are sun, soil, moisture, and temperature.

Some construction companies destroy wetlands when they build houses and buildings. By law, they must then restore an acre somewhere else. Companies pay Viola to do this for them. Viola bought more than 5,000 acres (2,000 ha) of farmland and forest in Virginia and orth Carolina. e turns them into wetlands. e fills in ditches that drain water from the wetlands. his allows water to stay on the land. e plants native plants and trees in the area. he nvironmental rotection gency checks to make sure that his work meets wetland standards.

S. cfm Information about wetlands conservation c sc R eal World ien e: Protecting Ecosystems 31 Index geologic change, 7 green roofs, 27–28 E national parks, 20–21 native species, 9 natural changes, 4–9 ew Jersey Conservation oundation, 26 A P Malaysia, 14 Marine Stewardship Council (MSC), 21 medicines, 19 Mount spiring ational ark, 7 A P ational ark, 21 lakes, 12–14 landslides, 7 N H Kruger W R Jamaica, 12 Jockey ollow ast Mine, 25 deforestation, 14–15 ecosystems changes in, 4–9 composition of, 4 impact of humans on, 10–15 restoring damaged, 23–28 unbalanced, 5 wise use of, 16–22 elephants, 19–20 rain forests, 14–15, 17–19 eal orld Science Challenge, 5, 12, 17, 25 reef balls, 24 reforestation, 24–25 regulations, 16–17 river ecosystems, 12, 27–28 invasive species, 9, 26 H cashew nuts, 18 Chaitén volcano, 6 changes human-caused, 10–15 natural, 4–9 China, 13–14 Clean ater ct, 21 coal mining, 25 coral reefs, 7, 12, 21, 23–24 A T W palm oil, 14 pollution, 12–14, 15, 27–28 habitat destruction, 7 humans, impact of on ecosystems, 10–15 urricane Katrina, 8–9 R A bacteria, 12 Bagrax Lake, 13 Boy Scouts, 26 Brazil, 18 Bridger- eton forest, 26 A ocean ecosystems, 12 oil, 14–15 overfishing, 11–12 fish, 11–12, 21 fishing, sustainable, 16–17, 21 N A frica, 19–21 algae, 12 nacostia iver, 27–28 rrowCorps5 project, 26 savannas, 19–21 sewage, 27–28 South frica, 20–21 storm water, 27–28 storms, 8–9 succession, 8 sustainable fishing, 16–17, 21 tallow trees, 9 tsunami, 7 volcanoes, 6–7 water pollution, 12–14, 15, 27–28 weather, 4, 8–9 wetlands, 21, 25–26, 28 F N About the Author Leanne Currie-McGhee lives in A N orfolk, Virginia, with her daughter, Grace, and husband, Keith.

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