What distinguishes a glacier from other regions that may be covered by snow?
a. a glacier is much larger.
b. most snow melts from the end of a glacier.
c. a glacier covers a large section of a continent.
d. at least some snow remains year-round in a glacier.

lol the answer is that a glacier is made up of more dense material than snow, rather than being made up with water : snow, glaciers are made up sheets of ice which are way denser and powerful so the answer is b

the answer is d (apex) good luck : ))

just finished the test, the answer is d, greg is the least cost-effective because he charges the most for the project