____ energy involves tapping underground reservoirs in volcanically active areas
A) Geothermal
B) Hydroelectric
C) Ground
D) Natural
A
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The edge of concrete slabs that are at, or within 18" of the grade must be insulated.
Answer the following statement true (T) or false (F)
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Why are centrifugal pumps used more often than positive displacement pumps?
A) They are more effective B) They are less expensive C) They require more space D) They are more complex to operate
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Probably the easiest way to determine what size lumber was used to frame a house is to inspect the _____________________.
Fill in the blank(s) with the appropriate word(s).
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By the year 2050, scientists predict there will be over _____ billion people in the world
a. 2 c. 11 b. 5 d. 50
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