The movement of rock pieces and other materials on earth's surface is called Weathering
Answer: 3.285714285714286 I believe this is what it is
Explanation:
You have to divide 50 by 28 then times it by 510 then divide by 86
The answer to this question is 45
Gravel and sand are the most permeable, making them good aquifer materials. Gravel has the highest.
Substitution
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