The 2007 crash of the us housing market was an example of a(n) a. social dilemma b. political conflict c. economic downturn d. environmental concern

C

Explanation:

It was due to economical downturn as people were not making enough money and trying to get into a cheaper living condition but nobody wanted to buy a more expensive house so those at the top were not sold so nobody was buying another house before theirs were sold.

answer; /// the answer to the first question is (b) it began when people first deliberately seeds; /// and (d); // it gave people a steady food supple for the first time;

i only have part a but here is the first one: - lewis and clark are born

- lewis marries sacajawea and clark is jealous  

- clark drowns lewis and then goes to jail