The answer is
b, reproduction
Ptolemy was an astronomer and mathematician. He believed that the Earth was the center of the Universe. The word for earth in Greek is geo, so we call this idea a "geocentric" theory.With the development of the heliocentric model by Nicolaus Copernicus in the 16th century, the Sun was believed to be the center of the Universe, with the planets (including Earth) and stars orbiting it.
Answer:
it helps the plant to take in sunlight and oxygen.
They will eventually become extinct as well. This is because they will have nothing to eat.