The average concentration of dissolved oxygen (DO) in the Shenandoah River was reported as 9.7 ppmm in 2006. What is the concentration in mg/L in the river water?
What will be an ideal response?
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Veins have rather thick elastic walls and carry the blood from the heart to the tissues of the body.
Answer the following statement true (T) or false (F)
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Which of the following would be the appropriate way to describe a 15 liter truck diesel engine?
A. small bore B. medium bore C. large bore D. heavy-duty bore
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Four million acres of farmland are lost each year to human expansion
a. True b. False Indicate whether the statement is true or false
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Once limestone is applied to an acid soil and the pH changes to near optimum, the pH can be expected to
a. revert to the original acidity within a year b. never revert to the original acidity c. remain constant for the next 15-20 years d. gradually decline
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