Melissa Uses a Sunscreen with an SPF Rating of 20

question 24

Multiple Choice

Melissa uses a sunscreen with an SPF rating of 20. What does this rating mean?

• A) She can stay in the sun for 20 minutes without getting tanned or burned.
• B) She can stay in the sun 20 times longer without getting burned than if she had not used it.
• C) She is protected against the full range of ultraviolet radiation.
• D) Her sunscreen contains 20 different ingredients to block ultraviolet radiation.

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Definitions:

Hallucinogenic Drugs

Substances that alter perception, thoughts, and feelings, leading to hallucinations.

Depressants

Substances that reduce the function or activity of a specific part of the body or brain, often leading to decreased arousal or stimulation.

Opium Poppy

A flowering plant from which opium and other opiates are extracted, used historically for both medicinal and recreational purposes.

Methaqualone

A sedative and hypnotic medication popular in the 1960s and 1970s, now mostly banned due to its high potential for abuse and addiction.