Fuel Cells Produce Electricity 1

question 20

Multiple Choice

Fuel cells produce electricity 1. that cannot be stored and must be used immediately.
2. indefinitely, as long as they are supplied with fuel (hydrogen) .
3. from fossil fuel added to the chemical reaction.
4. from solar energy that has been stored as chemical energy.

• A)1 only
• B)2 only
• C)3 only
• D)4 only
• E)2 and 4

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Definitions:

External Auditory Canal

The passage leading from the outer ear to the eardrum, transmitting sound waves to the eardrum.

Eardrum

A delicate film that divides the outer from the middle ear, moving in reaction to sound waves.

Sound Waves

Sonic oscillations transmitted through the air or other mediums, detectable upon reaching the ears of people or animals.

Carotid Canal

A passage in the temporal bone of the skull through which the internal carotid artery enters the cranial cavity to supply blood to the brain.