The soil is full of living organisms that depend on each other in an ________________________ system
Fill in the blank(s) with correct word
ecological
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0.0005 x ____ = 0.005.
A. 0.1 B. 10 C. 100 D. 1000
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Before discharging a fire extinguisher, how far away from the fire should you be positioned?
What will be an ideal response?
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Why should liquid refrigerant NOT be introduced into an evacuated chiller?
A) The liquid can flash at subfreezing temperatures and freeze the water in the chiller tubes. B) The liquid refrigerant might boil and overheat the water in the chiller. C) Liquid charging is slow and chillers hold a lot of refrigerant. D) Adding refrigerant would ruin the vacuum.
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Excessive oxygen in the exhaust gas stream will cause a zirconia oxygen sensor to:
A. stay above 450mv B. stay below 450mv C. maintain 450mv D. none of the above
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