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1) Trees provide food
2) Trees provide shelter and shade
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:
An earthquake is the result of a sudden release of stored energy in the Earth's crust that creates seismic waves. Earthquakes may occur naturally or as a result of human activities. Smaller earthquakes can also be caused by volcanic activity, landslides, mine blasts, and nuclear experiments.
Explanation: