Question

You have found that planet z should have active tectonics and volcanism and an atmosphere produced by volcanic outgassing. what single factor explains why the planet should have these characteristics?

Answer 1

The answer is Planet Z:
1. lacks axis tilt.
2. has a large size for a terrestrial planet.
3. has a slow rotation rate.closely orbits its star.

You can take a single point as a answer but though I am a Expert, I explained in detail.