Two factors in the atmosphere that can change the shape of landforms, (rain and wind), Mining minerals to use in industry affect the land. Examples:, (They are dug out of the ground. This changes the shape of the land and may cause pollution, Impact of agriculture in the the vegetation of grasslands, (When people use grasslands for agriculture, they replace the native plants with food crops, Purpose of a dam, (to control the flow of water in a river), Runoff, (It is water and pollutants that flow over the land and into rivers and streams.), Sources of air pollutants, (Burning fuels [wood and charcoal] to heat homes releases ash into the air, Space junk, (It is material made by humans that has been left in space), Deforestation, (t is the removal of all the trees in an area.), two words that were combined to create the word smog, ( Smoke and fog), What happens to satellites that are no longer working?, (They still orbit Earth; some are pulled toward Earth by gravity

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