Human Impact 2019

Front

What is the consequence of Japan and Norway continuing to whale despite a global ban?

Back

The whale populations are not rebounding as quickly as they might if all of the countries agreed not to hunt whales.

Front

What is eutrophication and how does it affect aquatic organisms?

Back

Eutrophication is the rapid growth of algae due to increased nitrogen in water, which uses up oxygen as it decomposes, reducing the amount available to other organisms.

Front

Why is it important for the EPA to monitor water quality around sewage treatment plants?

Back

Monitoring the environment ahead of time will allow the EPA to evaluate the impact of additional sewage being rerouted to a single sewage plant.

Front

Which animal has had the greatest negative impact on world ecosystems?

Back

Human.

Front

What does the presence of DDT in glacier runoff indicate about its environmental impact?

Back

DDT stays in the environment and will negatively impact ecosystems for generations.

Front

What is the definition of '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 the role of the Environmental Protection Agency (EPA)?

Back

The EPA is responsible for protecting human health and the environment by enforcing regulations and monitoring environmental quality.

Front

What is the impact of fertilizer runoff on aquatic ecosystems?

Back

Fertilizer runoff increases nitrogen levels in water, leading to algal blooms and decreased oxygen levels for aquatic life.

Front

What is the significance of monitoring water quality before changes in sewage treatment?

Back

It helps establish a baseline to assess the impact of changes on water quality and aquatic ecosystems.

Front

What are invasive species and why are they a concern?

Back

Invasive species are non-native organisms that can disrupt local ecosystems, outcompete native species, and cause ecological harm.