Which of the following is true about ice sheets?
1) They are the smallest type of glacier
2) They flow in all directions
3)They usually flow down valleys
4) They are found only in high mountain areas
The answer is number 2) They flow in all directions. Ice sheets are big mass of glacial ice and amount to 99% of freshwater in the world. Earth only has 2 ice sheets: Antarctic and Greenland ice sheet.
