The mass of the oceans is 1.4 x 1021 kg. The concentration of potassium, K, in the oceans is 380 ppmm. What is the total mass of the potassium stored in the oceans in metric tonnes?
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How many temporary folding aisle seats are permitted in a bus that is not carrying Farm Workers
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Briefly discuss the cause and spread of contagious diseases
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What are the three common evaporator designs used on air conditioning equipment?
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High efficiency condensers ____.
A. can withstand higher pressures than standard condensers B. have more surface area than standard condensers C. have stainless steel coils D. are located in separate cabinets
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