Freshwater wetlands, such as marshes, ponds, and streams, are generated by:
a. ice and snow c. rainwater
b. snow d. wind, rainwater, and snow
C
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12V is measured across a switch in a 12V electric circuit. This indicates the switch must be closed (in the ON position).
Answer the following statement true (T) or false (F)
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Currents of a three-phase system are ____ degrees out of phase with each other.
A. 60 B. 90 C. 120 D. 180
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One or two well-adapted varieties will often produce ____________________ quality than a mixture of species
Fill in the blank(s) with correct word
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The amount of whole-house and ____ leakage is a major factor in determining the efficiency of a house.
A. window B. vent C. duct D. fan
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