Electrons move in an electrical circuit
A) by being bumped by other electrons.
B) by colliding with molecules.
C) by interacting with an established electric field.
D) because the wires are so thin.
E) none of the above
C
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Photochemical smog forms when ________ and ________ are trapped by a thermal inversion and ozone, nitrogen dioxide and PAN form.
A. volatile organic compounds; oxides of nitrogen B. carbon monoxide; sulfur dioxide C. carbon dioxide; lead D. hydrocarbons; lead
Which type of rock flanks Lake Superior?
A) shale B) evaporite sedimentary rock C) volcanic and sedimentary rock D) metamorphic rock
Which input to production is sentient and capable of changing the conditions of work?
A) labor B) capital C) land D) management E) cost
On a world map of climate regions the lines that separate the regions mark locations of abrupt changes in temperature or precipitation conditions
Indicate whether the statement is true or false