<span>A. the relationship between the size of a certain area and the number of people who live there</span>
Answer: John Quincy Adams is the 6th president.
Explanation:
Domestication is the correct answer I believe
The correct answer is letter C
Explanation: Terrestrial planets are those formed mainly by rocks and metals, have a solid surface without the incidence of rings, as is the case with Mercury, Venus, Earth and Mars. Mercury is the smallest planet in the solar system, its core consists of dense metal, especially iron.