Which of the following energy forms is high quality?
a. Coal
b. the heat dispersed in the ocean
c. Electricity
d. Food
e. coal, electricity and food
E
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A parcel of air from the South Pole moves due north along the prime meridian; its motion is independent of Earth's rotation. Over what longitude will it be found four hours later?
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What describes the measurement of the concentration of hydrogen ions compared to the concentration of hydroxide ions in a solution?
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