Coal Mining Is a Dangerous and Dirty Job

question 411

Multiple Choice

Coal mining is a dangerous and dirty job. Suppose someone developed new machinery that made coal mining safer and cleaner; at the same time, suppose it made coal miners more productive. We would expect that the wages of coal miners would

• A)rise.
• B)fall.
• C)stay exactly the same.
• D)rise, fall, or stay the same.

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Definitions:

Taste Buds

Sensory organs located on the tongue that allow us to perceive different flavors such as sweet, salty, sour, and bitter.

Olfactory Neurons

Specialized nerve cells responsible for the sense of smell, located in the olfactory epithelium of the nasal cavity.

Mechanoreceptors

Sensory receptors that respond to mechanical pressures or distortions, such as touch, pressure, vibration, and sound.

Olfactory Epithelium

A specialized epithelial tissue inside the nasal cavity involved in the sense of smell, containing olfactory receptor cells.