Environmental Science Flashcard

Front

What percentage of Earth's water is freshwater available for human use?

Back

Less than 1%

Front

What is eutrophication?

Back

The excessive enrichment of water bodies with nutrients.

Front

Which of the following is a point source of pollution? Agricultural runoff, Factory pipe, Urban runoff, Forest fires

Back

Factory pipe

Front

What is an example of a density-independent factor affecting populations?

Back

Natural disasters

Front

What is a consequence of over-pumping groundwater? Options: Increased rainfall, Aquifer replenishment, Land subsidence, Soil erosion

Back

Land subsidence

Front

What is an example of the "Tragedy of the Commons"? Options: Overfishing in oceans, Planting more trees, Recycling waste, Using renewable energy

Back

Overfishing in oceans

Front

Which of the following is an impact of deforestation? Increased oxygen levels, Soil erosion, Enhanced biodiversity, Improved water cycle

Back

Soil erosion

Front

What is one benefit that trees provide?

Back

Carbon dioxide absorption

Front

Which of the following is a characteristic of organic farming? Use of synthetic pesticides, Higher crop yields, Natural fertilizers, Pest resistance

Back

Natural fertilizers

Front

What is a benefit of GMO farming?

Back

Drought tolerance