Which is the following quality being high values of drinking watera.Dissolved oxygenb.Conductivityc.Biochemical oxygen demandd.Chemical oxygen demand

To determine which of the listed options represents a quality indicative of high values of drinking water, we need to analyze each option:

1. Dissolved Oxygen (DO): High levels of dissolved oxygen in water are typically associated with good water quality. It is essential for the survival of aquatic life and contributes to the overall health of the water system.

2. Conductivity: This measures the water's ability to conduct electricity, which is influenced by the concentration of dissolved salts and ions. High conductivity can indicate pollution or the presence of contaminants rather than high water quality.

3. Biochemical Oxygen Demand (BOD): BOD measures the amount of oxygen required by microorganisms to decompose organic matter in water. High BOD levels generally indicate poor water quality, as it suggests a higher level of organic pollution.

4. Chemical Oxygen Demand (COD): COD indicates the total quantity of oxygen required to chemically oxidize organic and inorganic substances in water. High COD values typically reflect contamination and poorer water quality.

Conclusion:

Among the options, a. Dissolved oxygen is the quality indicator that represents high values corresponding to good drinking water quality. High dissolved oxygen levels signify a healthier environment, making it a crucial factor in assessing water suitability for drinking purposes.