Which of the following is not true?
a. oxygen 16 evaporates more readily from the ocean than oxygen 18
b. oxygen 16 and oxygen 18 are found in roughly equal amounts in ocean water
c. the nucleus of oxygen 18 contains two more neutrons than the nucleus of
oxygen 16
d. both oxygen 16 and oxygen 18 are found in the shells of marine organisms
b
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The "clean 15" represent
A) U.S. river clean up. B) the least polluted lakes. C) the produce that requires serious cleaning due to pesticides used. D) the produce that represents the least amount of pesticide presence. E) the top 15 organic farms in the United States.
Eighty calories of heat energy must be removed per gram of pure water at 0°C to form ice. This represents water's ____
A) latent heat of evaporation B) latent heat of fusion C) sensible heat D) temperature
Which of the following was NOT among the five largest world cities in 2013?
A) New York City B) Seoul C) Tokyo D) Shanghai
An announcement aimed at specific coastal areas that a hurricane poses a possible threat generally within 36 hours is called a:
A) hurricane watch. B) tornado watch. C) tornado warning. D) hurricane warning.