Planet a is an inner planet with no moon and hardly any atmosphere. planet b is an inner planet with no moon but with dense atmosphere

In our solar system there are two inner planets that do not have a moon; Mercury and Venus.

Planet A is assumed to be Mercury because it has a very thin virtually nonexistent atmosphere and no moon.

Planet B is assumed to be Venus because the planet has a dense toxic atmosphere. However, like Mercury, Venus has no moon of its own.

Explanation:

it would affect precipitation by causing flooding in some areas of the world due to climate increasing, causing the glaciers in the northern and southern pole of our planet to melt.

i wish you would have provided choices to simplify it and allow me to give an exact answer.

it takes hundreds of years to become stable.

if you have another question lmk.