Takumi works in his yard for 45 minutes each Saturday. He works in the morning, and he wears sunscreen and a hat each time he works in the yard. What does Takumi hope to reduce through his actions?
Answer
A
the likelihood of non-stochastic effects, such as radiation sickness
B
the likelihood of stochastic effects, such as DNA mutations
C
the severity of non-stochastic effects, such as cancer
D
the severity of stochastic effects, such as cancer
Explanation
Sunscreen and a hat reduce Takumi’s exposure to ultraviolet radiation from the sun. Lowering exposure reduces the likelihood of stochastic effects, which include DNA mutations that can lead to cancer. Stochastic effects concern the chance of an effect occurring, not its severity.
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