Difficulty: Easy

Average Score: 100%

Which of the following statements requires a citation?

Rationale

One in five Americans will develop skin cancer by the age of 70.

This statement presents a specific statistic about skin cancer prevalence, which requires a citation to validate its accuracy and source. Unlike general statements about sun exposure or sunscreen, this claim involves a quantifiable risk that necessitates referencing a credible study or data source.

A (Prolonged sun exposure can result in a burn.) YOUR ANSWER

This statement is widely accepted and based on well-established scientific understanding of the effects of UV radiation on the skin. It reflects a general principle that does not require specific citation, as it is common knowledge supported by numerous studies.

B (Some sunscreens have an SPF of 35 or higher.) YOUR ANSWER

This statement is also a factual assertion regarding sunscreen products that is well-known in dermatological contexts. It does not require a citation because it is a straightforward observation about the available SPF ratings of sunscreens, which are extensively documented by manufacturers and regulatory bodies.

D (Exposed skin is susceptible to sunburn.) YOUR ANSWER

This is a general statement reflecting the biological response of skin to UV radiation. It is an established fact in the field of dermatology that does not necessitate a citation, as it is commonly understood and widely accepted within both scientific and public health communities.

Conclusion

In summary, while statements A, B, and D convey general knowledge regarding sun exposure and sunscreen efficacy, statement C provides a specific statistic that requires verification through a credible source. Proper citation is crucial in academic and professional contexts to substantiate claims, especially those involving health statistics, ensuring accuracy and accountability in disseminating information about skin cancer risks.

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