Environmental Science (Water)

Front

What is primary sewage treatment?

Back

A physical process where screens and a grit tank are used to remove large, floating objects and allow solids such as sand and rock to settle out.

Front

What does turbidity measure in water?

Back

Turbidity measures the cloudiness or haziness of a fluid caused by large numbers of individual particles.

Front

What is a pH test used for in water quality assessment?

Back

A pH test measures the acidity or alkalinity of water, which can affect aquatic life.

Front

What is cultural eutrophication?

Back

Cultural eutrophication is the excessive input of nutrients into lakes and streams from human sources, leading to algal blooms and oxygen depletion.

Front

What is a pollutant?

Back

A pollutant is a chemical or form of energy that can adversely affect the health, survival, or activities of humans or other living organisms.

Front

What is the role of aerobic bacteria in sewage treatment?

Back

Aerobic bacteria decompose organic matter in wastewater, helping to reduce pollution.

Front

What is the significance of dissolved oxygen in water?

Back

Dissolved oxygen is crucial for the survival of aquatic organisms; low levels can lead to dead zones.

Front

What is the difference between physical and chemical water tests?

Back

Physical tests measure characteristics like turbidity and temperature, while chemical tests measure substances like pH and contaminants.

Front

What is salinization?

Back

Salinization is the accumulation of salts in soil or water, often due to irrigation practices.

Front

What is the ecological footprint?

Back

The ecological footprint measures the environmental impact of a person or community in terms of land and water area required to sustain their resource consumption.