The nutrient that is least likely to be found in fertilizer is:
A) nitrogen
B) potassium
C) ?calcium
D) phosphorus
C
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Which of the following are used to minimize standing hazards?
A) Anti-fatigue mats B) Foot rails C) Sit/stand chairs D) All of the above
What is the pressure called that is developed when the speed generated by the centrifugal force is slowed in the volute of the pump casing?
A) Liquid head B) Deadhead pressure C) Liquid pressure D) Centrifugal force
In the accompanying figure, the middle circuiting symbol stands for ____.
A. wiring concealed in floor B. wiring exposed C. wiring turned down D. wiring turned up
Which groups in European society benefitted most from the effects of the plague?
a. farm workers and urban wage earners b. lords and monks c. clerics and knights d. kings and lords