Eutrophication- Mr. Shiflett

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What is eutrophication?

Back

Eutrophication is the process by which a body of water becomes overly enriched with nutrients, leading to excessive growth of algae and other aquatic plants.

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What causes eutrophication?

Back

Eutrophication is primarily caused by the runoff of fertilizers, animal waste, and sewage into water bodies, which increases the levels of nitrates and phosphates.

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What is the role of algae in eutrophication?

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Algae thrive on the excess nutrients in water, leading to algal blooms that can cover the surface of the water and block sunlight.

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What happens to algae when they die?

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When algae die, they decompose, consuming oxygen in the water, which can lead to hypoxia (low oxygen levels) and harm aquatic life.

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What is hypoxia?

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Hypoxia is a condition in which there is a deficiency of oxygen in the water, often resulting from the decomposition of dead algae.

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What are nitrates and phosphates?

Back

Nitrates and phosphates are nutrients that promote plant growth; however, in excess, they can lead to eutrophication.

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How can burning fossil fuels contribute to eutrophication?

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Burning fossil fuels can release nitrogen oxides into the atmosphere, which can eventually deposit into water bodies as nitrates, contributing to eutrophication.

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What is an algal bloom?

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An algal bloom is a rapid increase in the population of algae in water bodies, often resulting from nutrient overload.

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What are the effects of eutrophication on aquatic ecosystems?

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Eutrophication can lead to decreased biodiversity, fish kills, and the disruption of aquatic ecosystems due to low oxygen levels.

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Can eutrophication occur in both rivers and lakes?

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TRUE, eutrophication can occur in both rivers and lakes.