In a heavy snow year that sees an expansion of the zone of accumulation, what happens to the line of equilibrium? A. It increases in elevation.

B. It retreats away from the toe.

C. It remains constant.

D. It decreases in elevation.

E. It retreats uphill.

A. It increases in elevation.

Explanation:

Equilibrium line passes through and divides the accumulation and the factors which causes the destruction of materials as a result of certain factors such as erosion.

In a heavy snow year that sees an expansion of the zone of accumulation, the line of equilibrium increases in elevation as a result of deposition of substances.

a characteristic is a deep cut in the earth or left over rock aka till.