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The parent material layer of a soil is composed of weathered ______.
Q4: Siltation and decreased water quality are especially
Q6: Why don't storms over land have as
Q12: Some of today's leading environmental thinkers, such
Q14: A scientific consensus<br>A)is typically broad in its
Q19: _ should never be allowed down a
Q32: Why is there a need to reeducate
Q34: "Brown fields" is another name for<br>A)Tallgrass prairies<br>B)Degraded
Q47: Most of the tallgrass prairies in the
Q49: Which of these is NOT a benefit
Q55: _, rather than _, are becoming the