A File Extension Is a Three- or Four-Letter Sequence, Preceded

question 18

True/False

A file extension is a three- or four-letter sequence, preceded by a period, that identifies the file as a particular type of document.

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Definitions:

Solid State Crystallization

The process through which a solid forms where the atoms or molecules are highly organized into a structure known as a crystal.

Specific Gravity

The ratio of the density of a substance to the density of a reference substance, typically water, used to identify materials or test fluid conditions.

Tetrahedron

A polyhedron with four faces, typically each an equilateral triangle, making up one of the simplest geometrical shapes in three dimensions.

Octahedron

A polyhedron with eight faces.