B is correct. Ever wondered why ice floats in water?
Answer:
A negative charge, if free to move in an electric field, will move from a low potential point to a high potential point. To move a positive charge against the electric field, work has to be done by you or a force external to the field.
Explanation:
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Ground water keept the ground at a stable level when it is gone the cavern it was in has no support and is at risk of callaps
The is true because I said so