D. They are not known for high birth rates
The question says,'the depression left by melted block of ice in glacial
deposit is called.......... The answer is kettle. Kettles are formed
when blocks of ice calve from glaciers and become submerged in the
sediment on the outwash plain. Kettles are usually circular in shape.
Kettle lakes are formed from kettles.
Troposphere is the layer where the air is thin as well as very warm
