SA: Human Impacts

Front

What are the environmental impacts of mining?

Back

Mining can destroy natural communities over large areas, cause acid drainage that pollutes groundwater, and lead to mass wasting when overburden is loosened.

Front

What is a potential benefit of aquaculture operations?

Back

Aquaculture operations can improve water quality when located in shallow water near discharge, as they can help manage organic matter.

Front

What environmental issue was observed in wildlife around the Great Lakes?

Back

Birds were found with deformities such as partially developed eyes and crossed bills, likely due to contaminated sediments infiltrating the water.

Front

How can fishermen sustainably manage shrimp populations?

Back

Fishermen can keep fishing for shrimp at a rate that allows the population to grow again, ensuring sustainability.

Front

What is the largest suspected environmental problem associated with burning fossil fuels?

Back

Global warming is the largest suspected environmental problem linked to the burning of fossil fuels.

Front

Define acid drainage.

Back

Acid drainage is the outflow of acidic water from metal mines or coal mines, which can contaminate nearby water sources.

Front

What is the role of benthos in aquatic ecosystems?

Back

Benthos refers to organisms living on the bottom of water bodies, playing a crucial role in nutrient cycling and energy flow.

Front

Explain the concept of overfishing.

Back

Overfishing occurs when fish are caught at a rate faster than they can reproduce, leading to population decline.

Front

What is the significance of coral reefs in marine ecosystems?

Back

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

Front

What are invasive species?

Back

Invasive species are non-native organisms that disrupt local ecosystems, often outcompeting native species for resources.