On a chilly 10°C day, your friend who likes cold weather wishes it were twice as cold. Taken literally, this temperature would be
A) 10°C.
B) 5°C.
C) 0°C.
D) 131.5°C.
E) 141.5°C.
D
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The current through two identical light bulbs connected in series is 0.25 A. The voltage across both bulbs is 110 V. The resistance of a single light bulb is
A. 44 ohms. B. 440 ohms. C. 220 ohms. D. 22 ohms.
With regard to map projections, conformity and equivalence are, in general, mutually exclusive properties
Indicate whether the statement is true or false.
Humans intervene in the nitrogen cycle in several ways. Which of the following is one of these?
A. Burning fossil fuels adds nitric oxide. B. Agriculture decreases the production of nitrous oxides. C. Protecting and replanting forests releases nitrogen. D. Harvesting nitrogen-rich crops stores nitrogen in the topsoil. E. Agriculture with fertilizers uses nitrogen in the aquatic systems.
Which conventional energy alternative has the highest EROI of any modern energy source?
a. Nuclear power b. Biofuel c. Hydropower d. Natural gas