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 ice sheets are the large masses of the glacial ice, which are spread more than 50,000 square kilometres. Ice sheath have maximum of the fresh waters, and they are also referred to as continental glaciers. The glacial ice less, which are less spread than ice sheets are known as ice caps. Many ice caps together form an ice field. These ice caps flows in all the directions outwards. only valley glaciers flow downwards in valley.

Hence, the correct answer is option (b). They flow in all the direction.

i think the answer is a.keratin is the pigment responsible for skin color.