The greenhouse effect is
Asomething that has occurred for millions of years.
Ban unnatural phenomenon caused by humans that maintains earth���s temperature range.
Cthe result of the differences in the angle of the sun���s rays.
Dan unnatural phenomenon that causes heat energy to be radiated back into the atmosphere.
Asomething that has occurred for millions of years.
Ban unnatural phenomenon caused by humans that maintains earth���s temperature range.
Cthe result of the differences in the angle of the sun���s rays.
Dan unnatural phenomenon that causes heat energy to be radiated back into the atmosphere.