Carbon moves from place to place in areas called

c. taught scientists many new things about the earth, but not other planets.

explanation:

i believe the answer is: returns on investments, no wages

people who belong in upper class society would most likely get there by obtaining multiple source of income, which a certain percentage of ownership for businesses. since most of them are job creator, they would most likely get their money from profit, not wages.

answer; no longer than a reasonable period of time;