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H.E.I. Quiz
Vocab
What is an ecosystem? | a community of living things in any area |
What is a food web? | the feeding relationship in an ecosystem, the food energy exchanged among living things |
What is freshwater? | water that is clean and salt-free |
What is trans-boundary pollution? | pollution in the air that spreads across country borders, usually carried by wind or water |
What is acid rain? | rain that carries chemicals from factory smoke and car exhaust |
What is desertification? | land becomes more and more dry until it becomes a desert |
What is global warming? | the slow increase in temperature of the Earth: the world is getting hotter |
What is the green house effect? | trapping of heat on Earth due to gases in the atmosphere |