How Long Do the Acid Generating Gases from Fossil Fuel

question 4

Multiple Choice

How long do the acid generating gases from fossil fuel combustion remain in the lower levels of the atmosphere and how far do they travel?

• A) weeks to months; only locally
• B) less than a few hours; a few kilometres
• C) several years; around the world
• D) a few hours to a few days; up to several thousand kilometres

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Definitions:

Bone Conduction

The transmission of sound waves to the inner ear through the bones of the skull, bypassing the outer and middle ear.

Auditory Canal

The tube that runs from the outer ear to the middle ear, transmitting sound waves.

Earwax

A substance secreted in the ear canal that protects and lubricates the ear.

HD

High Definition; a term commonly used to describe the resolution of visual content that has a higher resolution than standard definition.