Question

Which statement expresses the Second Law of Thermodynamics?

Options

• Energy can neither be created nor destroyed, only transformed.

• All solar radiation reaching the surface is trapped by green plants.

• Every energy transformation involves some loss as unusable heat.

• Energy is cyclic and repeats through ecosystems.

Answer 1

The Second Law of Thermodynamics states that every energy transformation has some loss as unusable heat. This loss occurs during energy transfers in ecosystems.