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Sewage and Organic Waste in Water

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Questions and Answers

What do visible turbidity levels in water typically indicate?

Low levels of sediment

High levels of dissolved oxygen

High levels of suspended solids (correct)

Low levels of organic matter

How can sedimentation-induced high turbidity negatively affect aquatic ecosystems?

Smothering habitat for fish and other organisms (correct)

Boosting oxygen levels in the water

Accelerating plant growth in water bodies

Promoting wildlife diversity

Which water contaminants are typically found in urban runoff causing increased turbidity levels?

Organic fertilizers

Oil, grease, heavy metals (correct)

Naturally occurring minerals

Freshwater organisms

What is the primary purpose of monitoring offensive odour in water bodies?

Assess water quality and identify pollutants (B) Signup and view all the answers

Which method is typically used to measure turbidity levels in water?

Nephelometer (A) Signup and view all the answers

What type of pollutants contribute to elevated turbidity levels in water?

Heavy metals (D) Signup and view all the answers

Which indicator can suggest the presence of industrial chemicals in water bodies?

Offensive odour (B) Signup and view all the answers

How do high turbidity levels affect water quality?

By hindering light penetration (D) Signup and view all the answers

What specific tool quantifies the amount of light scattered by suspended particles to determine turbidity?

Nephelometer (A) Signup and view all the answers

What role does offensive odour play in mitigating pollution sources in water bodies?

Indicator to protect ecosystems and human health (B) Signup and view all the answers