Question

Rift valleys can form when fractures in the Earth's crust widen. The valley walls slowly move at a rate of only a few millimeters a year. Which of these best describes the types of tectonic activity that forms rift valleys?

a.)
b.)
c.)
d.)

Answer 1

My best answer would be C I hoped I helped sry if you get it wrong

Answer 2

c.) Rift valleys form where two plates move away from each other.

Step-by-step explanation: