Question

the second law of thermodynamics tells us that when energy changes forms, what happens? it is created out of nothing. it increases with each transformation. some of it is lost, usually as heat.

Explanation:

The second law of thermodynamics states that in any energy transformation, entropy (a measure of disorder) increases. This means that some energy is lost, typically as heat, and is not available for useful work. Energy cannot be created out of nothing (contradicts the first law of thermodynamics), and it does not increase with each transformation.

Answer:

C. Some of it is lost, usually as heat.