Melodie370 Melodie370

02-10-2014
Geography

contestada

Pollution is the only way that humans can cause changes to ecosystems. True or false?

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Bugsytherooster Bugsytherooster

02-10-2014

False, there isn't just pollution. We also cut down trees, drain lakes and ponds, and put up buildings where ecosystems and habitats used to be.

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bookworm2020 bookworm2020

02-10-2014

False. we cut down tree, build cities in places that were once forest, kill off animals and forest fires

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