APES Unit 8 : Water Pollution & Treatment

What is cultural eutrophication?

• A process where water bodies become overly enriched with nutrients, leading to excessive growth of algae and depletion of oxygen.

• A method of purifying water by removing excess nutrients and pollutants.

• A phenomenon where aquatic plants are removed to improve water quality.

• A technique used to increase fish populations in lakes and rivers.

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-5

What is biomagnification?

• The process by which pollutants are broken down in the environment.

• The increase in concentration of pollutants in the tissues of organisms at each successive level of the food chain.

• The method of measuring biodiversity in an ecosystem.

• The transfer of energy from one trophic level to another.

What is bioaccumulation?

• The process by which organisms adapt to their environment over generations.

• The accumulation of nutrients in an organism's body from its diet.

• The process by which persistent pollutants, like mercury or PCBs, build up in the tissues of an organism over time as they consume contaminated food.

• The method by which organisms detoxify harmful substances in their bodies.

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-3

By weight, what is the most abundant water pollutant?

• Sediments

• Heavy metals

• Pesticides

• Nutrients

What is the tragedy of the commons?

• A situation where individuals work together for the common good.

• A scenario where shared resources are managed effectively by the community.

• A situation in which individuals acting in their own self-interest deplete shared resources, leading to long-term negative consequences for the community.

• A concept that promotes the unlimited use of resources without any consequences.

Tags

NGSS.MS-ESS3-4

What are the effects of thermal pollution?

• It increases oxygen levels in water bodies.

• It can harm aquatic ecosystems by reducing oxygen levels.

• It has no significant impact on water quality.

• It promotes the growth of harmful algae.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

What is the purpose of sewage treatment plants?

• To generate electricity from waste materials.

• To remove contaminants from wastewater before it is released into the environment, protecting water quality and public health.

• To recycle plastic waste into new products.

• To store excess rainwater for agricultural use.

What is the role of wetlands in water pollution control?

• Wetlands act as natural filters, absorbing pollutants and sediments from water, thus improving water quality before it enters larger bodies of water.

• Wetlands are primarily used for recreational activities and do not significantly impact water quality.

• Wetlands contribute to water pollution by allowing harmful substances to accumulate.

• Wetlands serve as habitats for wildlife but have no effect on water pollution.

Tags

NGSS.MS-LS2-5

What is the impact of heavy metals in water?

• They are beneficial for aquatic life.

• They can be toxic to aquatic life and can accumulate in the food chain, posing health risks to humans and wildlife.

• They have no impact on the environment.

• They improve water quality by providing essential nutrients.

Tags

NGSS.MS-LS2-4

What is salinization?

• Salinization is the accumulation of salts in soil or water, often due to irrigation practices or the intrusion of saltwater into freshwater systems.

• Salinization is the process of removing salts from soil or water to improve agricultural productivity.

• Salinization refers to the natural process of soil erosion caused by wind and water.

• Salinization is the introduction of freshwater into saline environments to restore ecosystems.

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4