What fraction of the earth did the former continental glaciers cover?

About 30-35%

Explanation:

Glaciers are defined as the large moving blocks of ice that are formed by the gathering and solidification of snow on the high elevated mountains. The poles and near-polar region are suitable locations for the formation of glaciers as the high latitude areas experience a very cold type of climate.

During the last glaciation or ice age, the maximum portion of the earth that was occupied with glaciers was about 30-35% of the total landmass.  

At present, glaciers cover only 10% of the earth's total landmass that includes the glaciers, large ice caps, and the extensive sheets of ice that are present in Antarctica as well as Greenland.

by cartels in other countries, shipped by air, mail, or land. i cant really see your answer choices : /

i believe it is c.) 1575 j.