Answer:
Mississippi River Watershed
Explanation:
The largest watershed in the United States is the Mississippi River Watershed, which drains 1.15 million square miles from all or parts of 31 U.S. states and two Canadian provinces stretching from the Rockies to the Appalachians!
Answer: C) breaking down terminology
Explanation:
The answer to #2 Is a..biota is the life of "a" plant, or animal (etc.) of the particular region/habitat, etc.