Energy refers to energy sources (such as solar, wind, and hydroelectric) that release very small amounts of greenhouse gases.

The correct answer would be renewable energy.

The renewable energy refers to the energy sources which gets replenished in nature at the same or similar pace at which they are being utilized by the humans.

They are also considered as clean energy sources as they produce no or least amount of pollution, greenhouse gases et cetera.

Examples may include solar energy, tidal energy, wind energy, et cetera.

blue stars have the highest surface temp

stellar distances are usually expressed in light-years

the measure of a star's brightness is called magnitude

hope this !

i dont know it at allnow im just getting points at this pint