Soil organic matter consists of ________
A) polymerized, non-identifiable molecules
B) dead tissues and wastes
C) identifiable biomolecules
D) living organisms and cells
E) all of the above
E
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Pure hydrogen is not a readily available fuel source in large quantities; therefore, hydrogen gas is generated through a(n) _____________ process.
Fill in the blank(s) with the appropriate word(s).
A corner between structural insulated wall panels in a SIP building requires
A) a minimum of four 2-by lumber studs. B) a minimum of two 2-by lumber studs. C) a minimum of one 2-by lumber stud. D) a minimum of three 2-by lumber studs. E) no 2-by lumber studs.
The pressure switch is used to start the compressor on most systems.
Answer the following statement true (T) or false (F)
What is the heat output of an electric furnace rated at 15 kilowatts on 240 volts?
A) 15 kw × 1000 = 15,000 BTU/h B) 15 kw × 3412 = 51,180 BTU/hr C) 15 kw × 240 = 36,000 BTU/hr D) The heat output cannot be calculated using the kilowatt output