Subtropical waters are typically more saline than equatorial waters because of
A. high evaporation, low precipitation.
B. low evaporation, low precipitation.
C. high evaporation, high precipitation.
D. low evaporation, high precipitation.
Answer: A
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Of the following regions or countries of South Asia, where would you be most likely to find a Muslim?
A) Bhutan
B) Sri Lanka
C) Kerala
D) Nepal
E) Kashmir
If a rock started with 1,000 atoms of a parent but now contains 250 atoms, how many half-lives have passed?
A) 0.25 half-lives B) 0.5 half-lives C) 2 half-lives D) 4 half-lives E) There is no way to tell.
Phil tosses a ball horizontally from a rooftop. One second after leaving his hand it drops a vertical distance of
A. 10 m. B. 15 m. C. 5 m. D. 20 m.
A difference between the innate immune system and the acquired immune system is
A) the innate immune system includes many more different types of receptors than the acquired immune system. B) the innate immune response is immediate, whereas the acquired immune response is delayed, peaking about 3 to 5 days after exposure. C) the innate immune system retains a memory for past exposure, with subsequent responses being faster and more aggressive; the acquired immune system does not. D) each acquired immune system cell responds to a greater number of different pathogens than each innate immune system cell.