Given a scientific question, generate a correct answer to it.

[Q]: What is the term for a loop in which a product feeds back to control its own production?
[A]: feedback mechanism

[Q]: What process is involved in the formation of a waterfall, when a stream flows from an area of harder to softer rock?
[A]: erosion

[Q]: Solid bedrock vibrates less and therefore does less of what to bedrock?
[A]:
damage