Question

chemical and biological weathering is negligble in polar regions​

Answer 1

Answer:

Chemical weathering is negligible because in the polar region the rocks get covered by snow or heavy layers of ice which breaks the contact of the rock with the outer atmosphere. This means that oxygen , carbon dioxide,etc cannot get access over the rock due to which chemical weathering is not possible.

Answer 2

Answer:

because evaporation rate is slow and all chemical and biological substance are in solid due to extrem cold.