Answer:
》Planetary differentiation《
In planetary science, planetary differentiation is the process of separating out the different components within a planetary body as a consequence of their physical or chemical behavior (e.g. density and chemical affinities). The process of planetary differentiation is mediated by partial melting with heat from radioactive isotope decay and planetary accretion. Planetary differentiation has occurred on planets, dwarf planets, the asteroid 4 Vesta, and natural satellites (such as the Moon).
When sun light enters the atmosphere of earth then it strikes with various layer of atmosphere then the blue light with least speed scatter in the sky to make it look like blue.
<span>Locations near the equator are warmer in temperature always. </span>
Lack of supplies such as good or water. There is less space for housing and recreational areas.