Question

When a Lunar Module landed on the Moon, it used thrusters to slow its descent to the surface. When other spacecraft are returned to Earth, they use parachutes to slow their descent. Why wouldn't a parachute be useful on the Moon?

Answer 1

A parachute is a device designed to generate a LOT of air resistance.
Parachutes do that very well in places where there's any air to work with.
There is no air on the Moon.