<span>Farmers can reduce soil erosion by contour plowing. The correct option among all the options that are given in the question is the second option or option "B". The other choices given in the question are incorrect and can be neglected. I hope that this is the answer that has actually come to your desired help.</span>
Answer:
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Subsoil: This layer has normally less organic matter than the A horizon, so its colour is mainly derived from iron oxides. Iron oxides and clay minerals accumulate as a result of weathering. In a soil, where substances move down from the topsoil, this is the layer, where they accumulate.
Note: This information has been taken out of a website.
The latitudes where the sun strikes the earth directly at the time of the June and December solstices.
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