What factor(s) determine Earth's average global temperature?
A. solar radiation and greenhouse gas concentration
B. latitude
C. solar radiation
D. greenhouse gas composition
Answer: A
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A magnetic field can occur in a current-carrying coil of wire
A. only if the current changes. B. with or without a contained piece of iron. C. if it contains a piece of iron. D. none of the above
Which of the following has the lowest boiling point?
A) 2,3-dimethylbutane B) hexane C) 2-methylpentane D) 3-methylpentane
Which of the following can be characterized as a strong electrolyte?
A) 0.001 M HCl B) 3.0 M HCl C) both a and b D) neither a nor b
In semiarid to arid regions, groundwater is considered a nonrenewable resource because it isn't replaced at the same rate as it is withdrawn
Indicate whether this statement is true or false.