During the most recent ice age, glaciers covered about percent of earth's land area. a. 10 b. 3 c. 30 d. 50

c)30

Explanation: Ice age is the past geological time when there was the presence of the ice sheet in thick form over the land covering vast areas . It is also known as glacial age because there was a formation of the glaciers on the Earth's surface in large amount from past many years .Glaciers almost covered the 30 percent of the area on the Earth's surface from the last ice age time.

radiative zone

explanation    

radiative zone is the layer of the sun which energy is transferred away from the core by radiation. although, the core is the only part of the sun that produces an appreciable amount of heat through fusion. in fact, 99% of the energy produced by the sun takes place within 24% of the sun's radius.