Two technicians are discussing lifting heavy items. Technician A says that you should always keep your back bent while lifting. Technician B says that most of your lifting ability comes from your lower back. Who is correct?

A. A only
B. B only
C. Both A and B
D. Neither A nor B


Answer: D

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You cannot locate the MSDS for a new chemical used in the shop. What should you do?

A. Ask a coworker what protective measures are necessary for this new chemical. B. Ask your employer to provide the MSDS for the chemical. C. Use the chemical with caution. D. Wait to see what happens to someone else who uses the chemical.

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Ammonia ____________________ results in the loss of ammonia from soil

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

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Few agriculturally produced plants and animals in the United States originated in other countries

Indicate whether the statement is true or false

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This refers to a balance between producing and using carbon, especially balancing carbon-dioxide emissions by activities such as growing plants to use as fuel or planting trees in urban areas to offset vehicle emissions:

A. carbon offset B. carbon footprint C. carbon neutral D. carbon reduction E. none of the above

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