42. The word "this" in line 5 refers to
(A) ocean
(B) evaporation
(C) salinity
(D) crystals
43. According to the passage, the ocean generally has more salt in
(A) coastal areas
(B) tropical areas
(C) rainy areas
(D) turbulent areas
44. All of the following are processes that decrease salinity EXCEPT
(A) evaporation
(B) precipitation
(C) runoff
(D) melting
45. Which of the following statements about the salinity of a body water can best be
inferred from the passage?
(A) The temperature of the water is the most important factor.
(B) The speed with which water moves is directly related to the amount of salt.
(C) Ocean salinity has little effect on sea life.
(D) Various factors combine to cause variations in the salt content of water.
46. The word "altered" in line 16 is closest in meaning to