Unit 8 Review

Front

What is aquatic pollution?

Back

Aquatic pollution refers to the contamination of water bodies such as rivers, lakes, and oceans, primarily due to human activities, which can harm aquatic life and ecosystems.

Front

List three common sources of aquatic pollution.

Back

1. Sewage 2. Heavy metals 3. Plastics

Front

What is the impact of chemical spills on aquatic ecosystems?

Back

Chemical spills can lead to water pollution, which can kill aquatic life and disrupt the balance of the ecosystem.

Front

Define biomagnification.

Back

Biomagnification is the process by which the concentration of toxic substances increases in organisms at each successive level of the food chain.

Front

What is overfishing?

Back

Overfishing is the practice of catching fish at a rate faster than they can reproduce, leading to a decline in fish populations.

Front

How does overfishing affect aquatic ecosystems?

Back

Overfishing reduces fish populations, which can disrupt the food chain and lead to imbalances in the ecosystem.

Front

What is the role of fish farms in aquaculture?

Back

Fish farms are facilities where fish are raised for commercial purposes, helping to meet the demand for seafood and reduce pressure on wild fish populations.

Front

What are the environmental concerns associated with fish farming?

Back

Fish farming can lead to water pollution, habitat destruction, and the spread of diseases to wild fish populations.

Front

What is the significance of coral reefs in marine ecosystems?

Back

Coral reefs provide habitat for a diverse range of marine species, protect coastlines from erosion, and support fishing and tourism industries.

Front

What harmful ingredient in sunscreen affects coral reefs?

Back

Oxybenzone is a harmful ingredient in sunscreen that can damage coral reefs and disrupt marine life.