What is permafrost?
1 point

Layer of soil that always stays frozen

Top part of soil that is frozen in the long winter but thaws in the summer

Floating sheet of ice permanently attached to a landmass.

A slowly moving mass or river of ice formed by the accumulation and compaction of snow on mountains or near the poles.

Layer of soil that always stays frozen

Explanation:permafrost are layer of soil that remain frozen, they contain soil,sands particles and rock that have been bound together by Ice. This happens when temperature is lowered in the soil below 0°C causing water between the rocks, cracks and soil to turn to ice.

Permafrost could be of detrimental effect when it decompose in warm temperature it could lead to release of gases that causes ozone layer depletion and release of some pathogen that are toxic to health. Permafrost covers a large area of land on the world.

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blue is scattered more than other colors because it travels as shorter, smaller waves. this is why we see a blue sky most of the time.