Answer :
Final answer:
Water quality is assessed through various indicators, and testing involves measuring different parameters to determine the purity of water.
Explanation:
Water Quality and Testing
Water quality refers to the chemical, physical, biological, and radiological characteristics of water. Testing involves measuring indicators like pH, conductivity, temperature, bacteria levels, dissolved oxygen, and more.
Substances Dissolved in Water
Examples include inorganic pollutants like heavy metals (lead, mercury), nutrients (phosphorus, nitrogen), pesticides, and organic compounds.
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