Unit 2 Water Quality Review

Front

What is a commonly used indicator of water quality?

Back

E. coli is a commonly used indicator of water quality.

Front

What is the leading cause of water pollution?

Back

Agriculture is the leading cause of water pollution.

Front

What occurs during an oxygen sag curve?

Back

The breakdown of biodegradable wastes by bacteria lowers the available oxygen in the water.

Front

What class of pollutants can cause excessive growth of algae?

Back

Nutrients are a class of pollutants that can cause excessive growth of algae.

Front

What does a pH above 7 indicate?

Back

A pH above 7 indicates a basic solution.

Front

What is the significance of E. coli in water quality assessment?

Back

E. coli is used as an indicator organism to assess the presence of fecal contamination in water.

Front

How do nutrients contribute to water pollution?

Back

Nutrients, such as nitrogen and phosphorus, can lead to algal blooms, which deplete oxygen in water.

Front

What is the impact of agriculture on water quality?

Back

Agriculture can introduce pesticides, fertilizers, and runoff that pollute water sources.

Front

What is the role of bacteria in the oxygen sag curve?

Back

Bacteria break down organic matter, consuming oxygen and leading to lower oxygen levels in water.

Front

What are heavy metals and their effect on water quality?

Back

Heavy metals, like lead and mercury, can be toxic to aquatic life and accumulate in the food chain.