It's called sedimentation. And erosion is when the rock is worn away by the water, and wind and becomes sediment.
Answer:

Explanation:
Given equation:

To solve the given equation:


Multiply both sides by T₀:

Add 100 to both sides:

Subtract
from both sides:

Factor out the common term T₀:

Divide both sides by 

Carry out the calculation:



The moon does not have an atmosphere because it is not a planet. It is just a big lump of rock that has a core. It was created from the Earth.