Agricultural scientists have estimated that the annual loss by erosion of arable land caused by heavy rainfall and inadequate flood controls approaches two million acres per year.
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Athe annual loss by erosion of arable land caused by heavy rainfall and inadequate flood controls approaches two million acres per year
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Bthe erosion of heavy rainfall and inadequate flood control causes a loss of arable land approaching two million acres per year
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Cerosion caused by heavy rainfall and inadequate flood controls results in a loss of arable land approaching two million acres per year
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Dan annual loss approaching two million acres of arable land per year results from results from erosion caused by heavy rainfall and unadequate flood controls
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Eannually a loss of arable land approaching two million acres is caused by erosion due to heavy rainfall and inadequate flood controls
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正确答案: C