What fraction of Earth's fresh water is held in the Great Lakes?
A) 1/20
B) 1/10
C) 1/5
D) 1/2
Question 2
Tidewater glaciers
A) are pushed out by the action of the tides.
B) are pushed out by the action of rivers.
C) rest on the bottom of the sea until they reach deeper water.
D) melt almost as soon as they reach the sea.