Farmer Jackson plowed a field at the top of a hill and then had a crop dusting plane spray weed killer on the field. After a few days, he noticed that there were still a lot of weeds in the field. He noticed that weeds in a field that was located right below the hill had died. Farmer Jackson did not have weed killer sprayed on the field below the hill. Can you offer a scientific explanation for what happened?

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  1. Either wind or water erosion probably washed the soil and weed killer to the lower level.

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    Ms. Sue

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