Radiant energy, or electromagnetic energy.
kinetic energy
Chemical
concrete
The tree gets electromagnetic energy from the sun. It comes in the form of sunlight, and this causes chemical reactions in the leaves of the tree to make chemical energy.
This is due to the principle of albedo. Snow is among the brightest natural surfaces on earth, and therefore reflects most incoming solar radiation. If the radiation is reflected, it cannot be absorbed by the surface and converted to thermal energy (heat) to raise the temperature. When you add any type of dirt and impurities to the snow, you are lowering the albedo of the snow, causing the surface to absorb more radiation and heat up. This causes the snow to melt faster.Interestingly, if the snow is covered by more than about a centimeter of dirt, it will be insulated from the sun and melt more slowly.
You collect snow by using any type of shovel on it. If you ust want to get rid of the snow you can place a torch, lava, or glowstone by the snow and it will melt it but you won't get nothing in return.
Cyclical
Radiant energy, or electromagnetic energy.
kinetic energy
Heat.
Light
Thunder
Chemical
Melting is a process that requires energy. A hot spoon contains heat, which is a type of energy, that is capable of causing ice cream to melt.
gravity of the moon
gravity