Why does the author examine the issue of slavery at the beginning of the article?

a. to discuss the rise of the california as a major
b. to show the conflict between states and territories
c. to discuss the effects of a labor shortage on farming
d. to show the growing division between the north and the south

i think the answer is true : ))

well considering i can't see the graph, it's probably prices

this statement is true.

forests are public goods, available for everybody. when usage of such a good becomes interesting for consumers and its usage increases, there can be a risk of overexploitation. it is a non rival good therefore, if one person consumes the good it does not reduce the availability for subsequent consumers.

these caracteristics require the establishment of measures in order to prevent the destruction of a commonly owned space, for example, to restrict the amount of people that have access to the same time.

answer; ///any two strangers are likely to share many coincidental similarities;