According to a USDA survey taken in 2009, no-till acres constitute about ____ percent of the country's farmland

a. 85 c. 45
b. 65 d. 35


D

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The safety and health movement today is characterized by professionalization and integration.

When should you test your parking brakes?

a. When backing. b. While the vehicle is parked. c. While moving at a very low speed.

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What type of output does an induction pulse generator used to read shaft or rotor speed produce?  

A. AC B. DC C. PWM D. constant frequency

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A(n) ____________________ is an electrochemical device that converts hydrogen and oxygen into electricity, water, and heat.

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

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