Which of the following is a (are) major source(s) of the carbon dioxide now being added to the atmosphere in excess of the amount taken out by plants?
A) destruction of natural forests
B) loss of soil organic matter
C) burning of fossil fuels
D) all of the above
E) none of the above
D
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The function of ____________ is to contain liquids or vapors and prevent them entering the environment or creating a hazard.
Fill in the blank(s) with the appropriate word(s).
U.S. Fish and Wildlife Service is responsible for the monitoring of wetlands
a. True b. False Indicate whether the statement is true or false
Technician A says all-wheel drive vehicles spread the tractive effort to all four driving wheels. Technician B says all-wheel drive vehicles operating under normal conditions are driving in 2WD. Who is correct?
A. A only B. B only C. both A and B D. neither A nor B
If the dc working voltage of a capacitor is 100 V, the dielectric must withstand ________
A) 220 VPP B) 75 VRMS C) 100 VDC D) 85 VRMS