At one point in our country's history (in the usa) slavery almost died out on its own due to what?

a.

federal laws prohibiting slavery.

b.

the federal government banning the import of slaves from other countries

c.

the prices of labor intensive farm products falling

d.

people's feelings that slavery was morally wrong

Which number identifies the guyot? a. 1 b. 2 c. 3 d. 4 e. 5 f. 6

In what region did the industrial revolution began

Before they can be published, scientific papers must be peer-reviewed. this means that: a) some other scientific experts read the papers and guarantee that they are true.b) some other scientific experts read the papers and provide quality control by eliminating many mistakes.c) an editor reads the papers, to make sure that all the semicolons are in the correct places.d) everyone in the world is given the opportunity to comment on the papers through a specially maintainedblog.e) government bureaucrats read the papers, to be sure that the papers do not insult the political positions ofthe current officeholders.