Which of the following is true about ice sheets? a. They are the smallest type of glacier.

b. They flow in all directions.

c. They usually flow down valleys.

d. They are found only in high mountain areas.

Look at the diagram showing the different wavelengths in sunlight. which statement describes electromagnetic waves with wavelengths greater than 700 nanometers? they take the form of heat. they can cause skin cancer and sunburn. they are some of the shortest waves. they can be seen by human eyes as visible light.