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Author Question: A primary cause of skin cancer is A) ultraviolet B radiation. B) ultraviolet A radiation. C) ... (Read 50 times)

Awilson837

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on: Jul 12, 2018
A primary cause of skin cancer is
 
  A) ultraviolet B radiation.
  B) ultraviolet A radiation.
  C) photochemical smog.
  D) irritants in cosmetic products.

Question 2

The ozone layer of the stratosphere protects the Earth from
 
  A) chlorofluorocarbons .
  B) extreme temperature fluctuations.
  C) UVB radiation.
  D) greenhouse gases.


anyusername12131

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Reply #1 on: Jul 12, 2018
Answer to Question 1

A

Answer to Question 2

C


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