8. Ice erodes rock and deposits sediments to form

glacial landforms

Explanation:

Glaciers cause erosion by plucking and abrasion. Glaciers deposit their sediment when they melt. Landforms deposited by glaciers include drumlins, kettle lakes, and eskers.

Erosion and Deposition by Ice Key Concept Glaciers shape Earth’s surface by moving rock and sediment. What You Will Learn • As glaciers move, they form a variety of landforms by removing rock and soil. • Glaciers deposit rock material when they melt or retreat. Why It Matters Glaciers have formed many of the landforms on Earth.

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.