B. the government must right the wrongs of the past with regard to race
Answer:
Advection fog.
Explanation:
Advection fog is most common along our Orange County beaches as well as in San Francisco because it is due to horizontal movement of air and it occur when the warmer and more moist air flow through the colder ground surface which lead to the cooling of the near air surface of the beach to below it's dew points and thus can happen even when it us windy and cloudy. It is common in West coast of USA.
The main mechanism through which the layering happened is gravity: it pulled the heavier, denser material to the center, leaving the less dense material on the surface.
The material that was on the outside cooled quicker, but this was the result, not the cause.
The answer is
<span>2) Gravity caused more-dense material to move toward the center of each planet.</span>