Today, radiation processing is most often done with electron machines or radioisotope sources such as ____. ?

A. ?cobalt-60
B. ?uranium
C. ?plutonium
D. ?radium 


Answer: A

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Answer the following statement true (T) or false (F)

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The greatest amount of dissolved oxygen added to the water comes about through the _____________________ of aquatic plants

Fill in the blank(s) with correct word

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Fill in the blank(s) with the appropriate word(s).

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How many steps are in the risk management (RM) process?

a. Four. b. Five. c. Six. d. Seven.

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