The Primary Cause of Permafrost Is ___________

question 16

Multiple Choice

The primary cause of permafrost is ___________.

• A) nightly temperatures of -15°C or colder
• B) cold seeping out of glaciers into underlying soil or sediment
• C) average temperatures of -5°C or colder
• D) the very long winter nights and very short winter days that occur in polar regions

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Definitions:

Linear Alkanes

Alkanes that consist of carbon atoms arranged in a straight chain, without any branches.

Methylpentane

A hydrocarbon molecule with the chemical formula C6H14, representing an isomer of hexane, used in various chemical applications.

Methyl Group

An alkyl derived from methane, containing one carbon atom bonded to three hydrogen atoms - CH3.

Valence Shell Electron Pair Repulsion Theory

A model used to predict the geometry of individual molecules based on the repulsion between electron pairs around a central atom.