Antarctic ice caps do not grow rapidly because

there is little precipitation

the ice reflects the sun’s rays

there is too much moisture in the air

the sun shines for six straight months
gradpoint

"Antarctic ice caps do not grow rapidly because there is too much moisture in the air."

Explanation:

Due to the global warming as a reason for the over all change or disturbance in the balance of environment we say that there are now less ice caps present in the Antarctic region. As there are less favorable conditions due to high surface temperature, due to which the particles goes up in the air which makes the situation worsen for the ice caps to form rapidly as compared to early times or we can say as compared to the ancient times. Due, to this reason the ice sheets formation is very slow and some how melts those which are present from a very long time in the region.

81 is a composite number.