QUESTION 1: Which of the following continental watersheds is each basin part of: Atlantic coast, Pacific coast, Gulf of California, Gulf of Mexico, Hudson Bay, St.Lawrence seaway?
ANSWER: Atlantic coast: P, Q, R; Pacific coast: A, B, C; Gulf of California: D, E; Gulf of Mexico: F, G, H, J, K, L, M, N, P; Hudson Bay: I; St. Lawrence seaway: O

QUESTION 2: Can you name the primary river systems that flow through the following drainage basins: A, D, E, F, G, H, J, L, O, N, M?
ANSWER: A: Columbia; D, E: Colorado; F, G, J, L, M, N: Mississippi; O: St. Lawrence seaway.