Question

by approximately how much do tectonic plates move per year?
choose 1 answer:
a a few centimeters
b a few meters
c a few kilometers

Explanation:

Tectonic plate movement is driven by mantle convection, and the rate is extremely slow, measurable in small units of length annually. Meters or kilometers per year would represent an impossibly fast rate that would cause catastrophic geological events constantly, which does not match observed geological data.

Answer:

A. a few centimeters