Of the Following Fuel Gases, Which Has the Fastest Burning

question 36

Multiple Choice

Of the following fuel gases, which has the fastest burning velocity?

• A) Acetylene
• B) Natural gas
• C) Propane
• D) Hydrogen

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Definitions:

Land Animals

Organisms that live primarily or exclusively on land, as opposed to aquatic or air environments.

Million Years

A unit of time equal to one million years, often used to describe geological and evolutionary time scales.

Bilateral Symmetry

A body shape with right and left halves that are approximately mirror images of each other. Compare with radial symmetry.

Cephalization

The evolution of a head; the concentration of nervous tissue and sense organs at the front end of the animal.