Answer:
because harmful substances often chemicals or microorganisms contaminate a stream, river, lake, ocean, aquifer, or other body of water, degrading water quality and rendering it toxic to humans or the environment.
Explanation:
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Answer:
multiplying the distance
Explanation:
when you're going up the wedge, and ur pushing something u need more force. when ue pushing something down the wedge there is less force and the distance increase.
Answer:
place, distance, distribution, movement, region, spatial association, and sustainability.
Explanation:
The seven geographical concepts of place, space, environment, interconnection, sustainability, scale and change are the key to understanding the places that make up our world. These are different from the content-based concepts such as weather, climate, mega cities and landscapes.