Written Laser Hair Removal Practice Exam 2026 – All-in-One Guide to Master Your Certification!

Question: 1 / 400

What do UVC rays primarily do?

Reach the earth's surface

Get absorbed by the ozone layer

The other options, such as A, C, and D, are incorrect because while UVC rays can reach the earth's surface, they are mainly blocked by the ozone layer. Additionally, while UVC rays can also cause skin cancer, it is not their primary function. And while UVC rays do contribute to global warming, it is not their main purpose. Thus, B is the best answer as it correctly states that UVC rays are primarily absorbed by the ozone layer.

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Cause skin cancer

Contribute to global warming

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