APES | Unit 8a Review

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What is Biological Oxygen Demand (BOD)?

Back

A measure of the amount of oxygen that microorganisms will consume while decomposing organic matter in water.

Front

What does Dissolved Oxygen (DO) indicate in a water body?

Back

The amount of oxygen that is present in water, which is essential for aquatic life.

Front

What is an Algal Bloom?

Back

A rapid increase in the population of algae in water bodies, often due to excess nutrients.

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What is a Point Source of pollution?

Back

A single, identifiable source of pollution, such as a pipe discharging waste into a river.

Front

What is a Non-point Source of pollution?

Back

Pollution that comes from multiple, diffuse sources, such as runoff from agricultural fields.

Front

What conditions yield the highest Dissolved Oxygen content in rivers?

Back

Fast-moving cold water with large amounts of submerged vegetative biomass.

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What is Hypoxia?

Back

A condition in which there is a deficiency of oxygen in a water body, often leading to dead zones.

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What is Mercury Pollution?

Back

Contamination of the environment with mercury, often from burning coal, which can accumulate in aquatic ecosystems.

Front

What is the Great Pacific Garbage Patch?

Back

A large area in the Pacific Ocean where plastic debris and other waste accumulate due to ocean currents.

Front

What is Eutrophication?

Back

The process by which water bodies become enriched with nutrients, leading to excessive growth of algae.