Read the following statements and find out the incorrect statement.A. Solids are relatively easy to remove from domestic sewage.B. Dissolved salts such as nitrates and phosphates, and toxic metal ions and organic compounds are most difficult to remove.C. Presence of large amounts of nutrients in waters causes excessive growth of fishes and other aquatic creatures.D. None of the above.

Read the following statements and find out the incorrect statement.A.

1.	Read the following statements and find out the incorrect statement.A. Solids are relatively easy to remove from domestic sewage.B. Dissolved salts such as nitrates and phosphates, and toxic metal ions and organic compounds are most difficult to remove.C. Presence of large amounts of nutrients in waters causes excessive growth of fishes and other aquatic creatures.D. None of the above.
Answer» Correct Answer - C Presence of large amount of nutrients in waters also causes excessive growth of Planktonic (free floating algae) called an algal bloom, which imparts a distinct colour to Water bodies. Algal bloom causes deterioration of the water quality and fish mortality.

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