Human Impact on the Environment Test Review

Front

What is photochemical smog?

Back

Photochemical smog is a type of air pollution that occurs when sunlight reacts with nitrogen oxides and volatile organic compounds, often from car exhaust, leading to harmful effects on health and the environment.

Front

How can the number of electric cars on the road impact air quality?

Back

An increase in the number of electric cars on the road can decrease the amount of photochemical smog, as electric cars produce no tailpipe emissions.

Front

What happens to the Earth's average temperature if greenhouse gases are decreased?

Back

If we decrease the amount of greenhouse gases in the atmosphere, the Earth's average temperature will decrease and may return to normal.

Front

What is one way individuals can improve air quality?

Back

Taking public transportation is one way individuals can have a positive impact on air quality.

Front

What is runoff and how does it affect ponds?

Back

Runoff is water that flows over land and can carry pollutants into ponds, increasing algae growth and reducing oxygen levels for aquatic life.

Front

What is acid precipitation?

Back

Acid precipitation refers to rain, snow, or other forms of moisture that have a lower pH due to pollutants like sulfur dioxide and nitrogen oxides.

Front

What effect does acid precipitation have on lakes?

Back

Acid precipitation decreases the pH of lakes, which can harm aquatic ecosystems and reduce biodiversity.

Front

What is a common source of sulfur dioxide that contributes to acid rain?

Back

Power plants that burn fossil fuels are a common source of sulfur dioxide, which can combine with moisture in the atmosphere to form acid rain.

Front

What is the relationship between air pollution levels and acid precipitation?

Back

Acid precipitation increases when air pollution levels are high, not low.

Front

What are some renewable sources of energy?

Back

Renewable sources of energy include solar, wind, hydroelectric, and geothermal energy.