Hey! can someone help me find the definition of feedback in sci???

1.

information about reactions to a product, a person's performance of a task, etc. which is used as a basis for improvement.

"throughout this process we have obtained valuable feedback"

2.

a screeching or humming sound resulting from the return of a fraction of the output signal from an amplifier, microphone, or other device to the input of the same device.

"Punk Rock Girl opens the disc with plenty of guitar feedback"

answer; ///( uniformitarianism );

1."lessen the worth of ."

2."increase the worth of."

3." beyond the worth of."

4."against the worth of ."