What Happened to Sales of Big-Rig Trucks as a Result

question 42

Multiple Choice

What happened to sales of big-rig trucks as a result of new federal regulations on emissions?

• A) sales increased by 50 percent
• B) sales increased by 30 percent
• C) sales decreased by 50 percent
• D) sales decreased by 30 percent
• E) the change had no impact on sales

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Definitions:

Neuron

A specialized cell transmitting nerve impulses; a nerve cell.

Neurotransmitter

Chemical substances that transmit signals across a synapse from one neuron to another in the nervous system.

Sensory Neuron

A neuron responsible for converting external stimuli from the environment into internal electrical impulses.

Motor Neuron

A type of neuron that sends impulses from the brain and spinal cord to muscles, stimulating movement.