erosion and weathering.
erosion as in breaking it down, weathering is also a cause of erosion, but in the case of rain, it would carry away the remaining sediments.
Verbal and nonverbal.
They would look for shakiness of the voice (verbal) or darting eyes (nonverbal), and other things to that same effect.
Answer:
I believe it is D, Heavy ice presses on sediment causing the formation of sedimentary rock
Explanation: