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There are _____ hazard classes. A. 9 B. 7 C. 11 D. 5
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There are _____ hazard classes.
A. 9
B. 7
C. 11
D. 5

User Roman Arzumanyan
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1 Answer

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Final answer:

There are 11 hazard classes.

Step-by-step explanation:

According to the given information, there are 11 hazard classes. This is supported by Chapter 17, where option C is stated as the correct answer for question 17. Additionally, in Environmental Biology 199, the question states 'Which one of the following is not a naturally-occurring element that may be hazardous to human health?' This suggests that there are naturally-occurring hazardous elements, which aligns with the concept of hazard classes.

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User Maalls
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