OBJECTIVE LIFE SCIENCE
ECOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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more than 1 ppm
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less than 1 ppm
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10 ppm
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more than 30 ppm
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Detailed explanation-1: -Here are our parameters for saline water: Fresh water-Less than 1, 000 ppm. Slightly saline water-From 1, 000 ppm to 3, 000 ppm. Moderately saline water-From 3, 000 ppm to 10, 000 ppm.
Detailed explanation-2: -Fresh water has a salinity of 0.5 ppt or less. Estuaries can have varying salinity levels throughout their length and can range from 0.5-30 ppt depending on their proximity to river inflows or the ocean. The average salinity of ocean water is 35 ppt.
Detailed explanation-3: -Over 97 percent of the earth’s water is found in the oceans as salt water. Two percent of the earth’s water is stored as fresh water in glaciers, ice caps, and snowy mountain ranges.
Detailed explanation-4: -Chloride concentrations of between 1 and 100 ppm (parts per million) are normal in freshwater. Chloride ions come into solution in water in underground aquifers, geological formations that contain groundwater.