Eutrophication Quiz

What are the main causes of eutrophication?

• Lack of nutrients such as nitrogen and phosphorus

• Excessive nutrients such as nitrogen and phosphorus

• Excessive sunlight

• Low water temperature

How do agricultural activities contribute to eutrophication?

• Burning of fossil fuels

• Reducing water pollution

• Planting more trees

• Excess release of nutrients into water bodies

What are the effects of eutrophication on aquatic life?

• Algal blooms, decreased oxygen levels, and harm to aquatic life

• Increased oxygen levels, and benefit to aquatic life

• No impact on aquatic life

• Decreased algal growth, and improved water quality

How does eutrophication lead to the depletion of oxygen in water bodies?

• Excessive growth of algae and aquatic plants

• Decrease in temperature of the water

• Introduction of more oxygen into the water

• Reduced population of fish in the water

What are some methods to prevent eutrophication?

• Increasing the use of fertilizers

• Dumping sewage and wastewater into water bodies

• Destroying wetlands

• Reducing the use of fertilizers, managing sewage and wastewater, protecting wetlands, and promoting sustainable agricultural practices

How can reducing the use of fertilizers help in preventing eutrophication?

• By decreasing the amount of nutrients that enter water bodies and cause excessive algae growth.

• By increasing the amount of nutrients that enter water bodies

• By promoting excessive algae growth in water bodies

• By improving the overall health of water bodies

What is nutrient pollution in water bodies?

• Low water levels in water bodies

• Toxic chemicals in water bodies

• Excessive nutrients entering the water system

• Lack of nutrients in water bodies

How does nutrient pollution contribute to eutrophication?

• Rise in oxygen levels

• Increase in biodiversity

• Decrease in algae growth

• Excessive growth of algae and other aquatic plants, leading to oxygen depletion

What are algal blooms and how are they related to eutrophication?

• Algal blooms are rapid increases in the population of algae in an aquatic system, and they are related to eutrophication because eutrophication provides excess nutrients that promote algal growth.

• Algal blooms are a natural occurrence in aquatic systems, and they are related to eutrophication due to the presence of predators

• Algal blooms are a result of excessive fishing in the area, and they are related to eutrophication because of overfishing

• Algal blooms are caused by a lack of nutrients in the water, and they are not related to eutrophication

How do algal blooms negatively impact aquatic ecosystems?

• Depleting oxygen levels, blocking sunlight, and releasing toxins

• Increasing oxygen levels, allowing more sunlight, and removing toxins