APES Unit 8

Front

What are oligotrophic lakes?

Back

Lakes in mountain regions characterized by clear water and few nutrients.

Front

How do vaccines work?

Back

Vaccines help antibodies build immunity against a specific pathogen.

Front

What gas is produced by bacteria during anaerobic respiration in landfills?

Back

Methane.

Front

Which type of pollutant does not require direct contact?

Back

Radiation.

Front

What is the first step in the water treatment process?

Back

Filtration.

Front

Define eutrophic lakes.

Back

Lakes that are nutrient-rich and often have high levels of algae.

Front

What is anaerobic respiration?

Back

A process by which bacteria decompose materials without oxygen, producing methane.

Front

What are heavy metals?

Back

Toxic elements that can accumulate in the environment and living organisms.

Front

What are persistent organic pollutants (POPs)?

Back

Chemical substances that persist in the environment and can bioaccumulate in the food chain.

Front

What is the role of flocs in water treatment?

Back

Flocs are clumps of particles that form during coagulation and help remove impurities from water.