The addition of salt to fresh water to form salt water ________.
A. increases the density of the water
B. makes the temperature of maximum density increase
C. depresses the boiling point and elevates the freezing point
D. All of these are correct.
E. None of these is correct.
Answer: A
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Analysis of Southern Oscillation Index (SOI) trends indicates
A) La Nina episodes are becoming more common. B) El Nino episodes are becoming more common. C) the frequency of La Nina and El Nino is equal. D) none of the above.
The annual range of temperature may be described as the difference between ________
maximum and minimum temperatures over a period of one year maximum and minimum temperatures during the period of one month the average temperatures of the warmest and coldest months both a and c
An El Niño event is triggered when
A) the Pacific equatorial currents grow in strength. B) trade winds weaken or reverse direction. C) upwelling increases along the coast of Ecuador and Peru. D) ocean waters around Indonesia increase in temperature. E) La Niña is halfway through its cycle.
In terms of a typical soil-water balance in most of the United States, which season is associated with a soil-water surplus?
A) Summer B) Spring C) The one with the greatest evapotranspiration D) The one which is warmest E) The high sun season