The sun provides all the energy for evaporation.
I believe there has to be enough activation energy for a reaction to occur in the first place, if that is what you are referencing
Answer:
Planet Y
Explanation:
Planet Y has the smaller period because it takes less time to orbit the star. This is because it has less distance to travel compared to X.
Warm water with no salt is the least dense
Orbits are the result of a perfect balance between the forward motion of a body in space, such as a planet or moon, and the pull of gravity on it from another body in space, such as a large planet or star. ... These forces of inertia and gravity have to be perfectly balanced for an orbit to happen.
