<span>c. By the 1970's the Chinese government created the One Child Policy.</span>
Explanation:
Heliocentrism is the astronomical model in which the Earth and planets revolve around the Sun at the center of the Solar System. Historically, heliocentrism was opposed to geocentrism, which placed the Earth at the center.
a cosmological model in which the Sun is assumed to lie at or near a central point (e.g., of the solar system or of the universe) while the Earth and other bodies revolve around it.
C is the answer to everything
Mainly because of the fact that in January the Earth is tilted away from the sun, reaulting in those cold winter nights. However, in July the earth is tilted more toward the sun resulting in those warm sunny days.