The correct answer is letter C. increase deposition of sediments upstream. The negative effect of using too much water for the irrigation of crops is that it wash out sediments and these sediments are brought down the water streams.
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Answer:
It should be B. Whether the ash or gas reaches the stratosphere
Explanation:
Phytoplankton is biotic because it is a living thing. =)
Answer: A - forest overgrowth
Forest overgrowth is not regarded as an environmental issue.
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