What caused virtually all of canada and some of the northern us to be once covered by thick glacial ice almost 15,000 years ago?
a. changes in the earth’s climate caused the ice sheets to grow.
b. changes in the orbit of the earth caused the ice sheets to spread across canada.
c. the ice sheets were widespread because they were prevalent all around the world.
d. there is no apparent reason why the glacial ice was present.

What river systems the worlds earliest known civilization develop ?

My latest book, fightin’, prose short fiction, is a combination. there’s nothing about being indian in there. just stories of people. why shouldn’t i write about non-indians? i don’t have to dress anybody in feathers." how does ortiz's use of language in this excerpt set an informal tone? a. by using contractions and sentence fragments, ortiz makes this part of the interview feel more familiar and casual. c. by using the term "indian" rather than "native american," ortiz makes this part of the interview feel more combative or hostile. b. by employing first-person pronouns, ortiz makes this part of the interview more solemn and pessimistic. d. by asking a rhetorical question, ortiz makes this part of the interview objectively and intentionally funny and lighthearted.

In 66 ce, this group of jews revolted against the romans.