Suppose leaves containing 1000 kg of carbon fell to the forest floor in a humid temperate environment. After a year or so, how many kg of that carbon would you expect to remain in the soil as microbial biomass and humus?
A) 20 B) 10 C) 200 D) 400 E) 800
C
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Which of the following is true regarding pneumatic tools?
a. They are powered by hydraulic pressure. b. They have a safety device that prevents the tool from operating unless the muzzle is pressed against a work surface. c. They are rarely used due to the hazards presented by this type of equipment. d. They require OSHA certification, including an operator's card that must be carried at all times.
"ELI the ICE Man" is used to remember _____.
a. phase relationships that exist between voltage and current in an inductive circuit b. the phase relationship between current and amperage c. voltage lags resistance d. current lags voltage
Technician Asays all electrical tools, unless they are the double-insulated type, must be grounded. Technician B says that even a properly grounded tool could cause a shock if an easier path to ground is available to the electrical current. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
The pipe that connects the construction site to the public sewer pipe is referred to as a ____.
A. drainage grate B. bound C. lateral D. mete