Relative to Glacial Mass Balance, Which of the Following Is

Multiple Choice

Relative to glacial mass balance, which of the following is false?

A) A positive net balance occurs during a cold period, and a negative net balance occurs during a warm period.
B) Glacial mass is reduced by evaporation, sublimation, and deflation.
C) Glacial mass is reduced by a combination of processes called ablation.
D) Worldwide, most glaciers are showing marked net increase in mass at present.