EARTH SCIENCE
OCEANS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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coastal waters in cool, humid environments
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river waters
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coastal waters in hot, dry climates
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coastal waters near river outlets
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Detailed explanation-1: -There are parts of the ocean where hardly any rain falls but warm dry winds cause lots of evaporation. This evaporation removes water – when water vapour rises into the atmosphere, it leaves the salt behind, so the salinity of the seawater increases. This causes the seawater to become denser.
Detailed explanation-2: -The saltiest ocean water is in the Red Sea and in the Persian Gulf region (around 40‰) due to very high evaporation and little fresh water inflow.
Detailed explanation-3: -Both evaporation and freezing increase the salinity of ocean water. This is why tropical waters have a higher salinity than polar waters especially in summer. There is also more salinity on the surface than at greater depths.
Detailed explanation-4: -Lake Van of Turkey has the highest salinity in the world at 330%o. Next is the Dead Sea, Israel (240%o) and the Great Salt Lake, Utah, USA (220%o).