Which of the following is a reason to be concerned about nitrogen and oxygen?
A) is not toxic at low levels
B) is thought to contribute to the greenhouse effect in the atmosphere
C) can combine with other gases to form particulates
D) ?they occur naturally
B
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Foreign trade enhancements include
A) Instituting quotas on food imports. B) Reducing tariffs on food imports. C) Increasing the value of the dollar. D) None of the above.
The correct use of ____________________ tools is fundamental in agricultural mechanics
Fill in the blank(s) with the appropriate word(s).
MSDS stands for:
a. Material Standards Department of Safety b. Mega Safe Digging Society c. Material Safety Data Sheet d. Multi Safe Data Standards
What input sensor is found in the fan section?
A) the mixed-air temperature sensor B) the filter status toggle switch C) the low temperature thermostat D) the supply-air temperature sensor