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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
Created by: aengel