Question

2 points
Q17. ___ occurs as rock
surfaces heated by the Sun
during the day expand slightly,
and then contract with
nighttime cooling
a) Exfoliation
O b) Thermal expansion
O c) Frost wedging
O d) Salt-crystal growth​

Answer 1

Answer:

Thermal expansion

Explanation.

Thermal expansion occurs as rock

surfaces heated by the Sun

during the day expand slightly,

and then contract with

nighttime cooling

Answer 2

Answer:

option D is ur answer....

Explanation:

Salt crystal growth