Which of the following is true about ice sheets? They are the smallest type of glacier. They flow in all directions. They usually flow down valleys. They are found only in high mountain areas.

Ice sheets are fascinating because they cover vast areas, typically over 50,000 square kilometers, making them the largest type of glacier! Unlike valley glaciers that are restricted to mountainous regions, ice sheets can flow in all directions, oozing out like a giant, slow-motion pancake under the force of gravity. In real-world terms, ice sheets play a crucial role in regulating the Earth's climate. For instance, if the Greenland or Antarctic ice sheets were to melt significantly, it could lead to dramatic rises in sea levels, impacting coastlines around the globe. Understanding their dynamics helps scientists predict future changes and prepare for possible environmental challenges.