Chapter 28, Problem 9RAT

Snow converts to glacial ice when subjected to

(a) decreasing temperature.

(b) pressure.

(c) rain.

(d) basal sliding.

To determine

The correct option for the statement “Snow converts to glacial ice when subjected to.”

Answer to Problem 9RAT

The correct option for the statement “Snow converts to glacial ice when subjected to” is option (b).

Explanation of Solution

The rivers on the Earth that are frozen solid and flow sluggish a few distances per day are known as glaciers. The formation of the glacier is due to the recrystallization of snow. As snow falls on an area, it forms snowflakes. When more snow falls on over it, the snow gets deposited over the area. This deposition of snow tends to exert pressure on the lower layers. This pressure created by the upper layers on the lower layers increases with more accumulation of snow. Due to this, ice in the bottom layer becomes compact, and the size of the crystal changes, causing them to move because of their own weight.

Conclusion:

Therefore, the correct option for the statement “Snow converts to glacial ice when subjected to” is option (b).