Env. Science - 5.2 Check

Why is groundwater pollution hard to clean?

• It is easy to access.

• It spreads quickly.

• It is located deep underground.

• It is visible on the surface.

What is the difference between point and nonpoint pollution?

• Point pollution is from a single source; nonpoint is from multiple sources.

• Point pollution is visible; nonpoint is invisible.

• Point pollution is harmless; nonpoint is harmful.

• Point pollution is natural; nonpoint is man-made.

What is the impact of water pollution on the environment?

• It improves water quality.

• It harms aquatic life.

• It increases plant growth.

• It has no effect.

What is a common cause of water pollution in very poor countries?

• Industrial waste.

• Population outgrowing the water supply.

• Excessive rainfall.

• Lack of agriculture.

What is water pollution?

• The introduction of clean water into rivers

• The introduction of chemical, physical, or biological agents into water

• The removal of waste from water

• The increase of fish population in water

What are the two underlying causes of water pollution mentioned in the text?

• Industrialization and human population explosion

• Deforestation and climate change

• Overfishing and agriculture

• Urbanization and mining

What are pathogens?

• Biodegradable remains of animals and plants

• Disease-causing organisms such as bacteria

• Acids, salts, and toxic metals

• Heat and suspended solids

What is point pollution?

• Pollution from multiple sources

• Pollution that is hard to trace

• Pollution from a single source

• Pollution that cannot be controlled

Why is point pollution relatively easy to regulate and control?

• It is invisible

• It is easily identified and traced

• It is harmless

• It is widespread

Which of the following is an example of a source of point pollution?

• A forest

• A factory

• A river

• A mountain