Answer:
A..
hope it is correct dear
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The soil on a valley floor
The soil on the hillside can roll down because of rain, landslides, etc , and so it would continue to develop in the areas
The soil in the valley floor, however, should be staying in the same condition for most of the time
hope this helps
Underground, at the point where slippage along the fault begins.
The answer is A, Thalamus.
