Which river drains all of the land between the rocky and appalachian mountains?
a.

the columbia
b.

the colorado
c.

the rio grande
d.

the mississippi

The correct answer is option D. the Mississippi.

The Mississippi River, the largest river of the United States, drains a large portion of the land area between the Appalachian Mountains and the Rocky Mountains. The Mississippi River also carries all the water through many the American states and finally discharges it into the Gulf of Mexico.  

i don't see how you want other people to do your work for you and it is like you are just handing your assignment to anybody else and having them deal with it instead of your self i thought this site was for asking questions and somebody could you on it not just handing your work to somebody else to deal with it just saying don't mean to be mean just proving a fact.

explanation:

which time period is this? or is this story fictional, i'm going to need more info to answer this question