How is the solubility of a gas affected by temperature?
A) As temperature goes up, the solubility goes up.
B) As temperature goes down, the solubility goes down.
C) As temperature goes up, the solubility stays the same.
D) As temperature goes down, the solubility goes up.
E) both A and B
D
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Which of the following describes an urban heat island?
A. It results in cities being cooler at night compared to rural areas. B. It causes a wind to flow from the city to the countryside. C. It releases more longwave radiation in the day than a nearby rural area. D. It has less evaporative cooling than nearby rural areas.
Sickle cell anemia is the result of how many changes in each b-chain of normal hemoglobin?
A) 1 B) 2 C) 3 D) 4
Oxygen-isotope analysis is a measurement technique that has been used in climate studies to determine the temperature of seawater by analyzing ____
a. whale bones b. sea weed c. beach sand d. tiny seashells of plankton e. seafloor basalt
Which of these properties do polar bears in the Arctic depend upon for their habitat?
A. liquid water expands when it becomes ice B. salty water is more dense than fresh water C. aurora borealis D. conductive property of ice molecules