Question

how does water movement affect salinity

Answer 1

As the temperature of the water increases, it becomes less dense. A lower density means the water becomes less heavy, so it moves toward the surface. ... While temperature canaffect the rate of movement, so does salinity. Ocean water has salt so it has a greatersalinity than fresh water, which has little or no salt.

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Answer 2

According to the National Oceanic and Atmospheric Administration, as much as 71 percent—nearly three-quarters—of all the earth's surface is covered by the oceans, which hold 97 percent of the earth's water. These mammoth bodies of water are not inanimate; currents move the water from place to place. These currents are affected to a large degree by the salinity (concentration of salt and other dissolved minerals) of the water.