Human Impact on Air

Human Impact on Air

SC.7.E.6.6 Identify the impact that humans have had on Earth, such as deforestation, urbanization, desertification, erosion, air and water quality, and changing the flow of water.

Types of Air pollution

• Smog

• Acid Precipitation

• CFCs

• Carbon Monoxide

• Particulate Matter

Smog

• Air pollution that reduces visibility

• Photochemical smog is caused when nitrogen and carbon compounds in the air react in sunlight.

Acid Precipitation

• Rain or snow that has a lower pH than normal rainwater

• pH tells how acidic or basic a solution is

• If the pH of the water or the soil becomes too low, living organisms in the water and soil cannot survive

Multiple Choice

Acid precipitation is rain or snow that has a higher pH than rainwater. Acid precipitation differs from photochemical smog in that the burning of fossil fuels does not cause acid precipitation.

• True

• False

Multiple Choice

Particulate matter can enter the air due to natural sources such as volcanic eruptions; it can also enter the air as a result of human activities such as burning fossil fuels. Inhaling particulate matter can result in respiratory problems.

• True

• False

CFCs

• Chlorofluorocarbons destroy the earth's protective ozone layer, which shields the earth from harmful ultraviolet rays generated from the sun. 

• Also warm the lower atmosphere of the earth, changing global climate

• 
  

Carbon Monoxide

• The gas carbon monoxide is released by vehicles, industries, and forest fires

• 
  

Particulate matter

• mix of solid and liquid particles in the air

Multiple Choice

Are humans affecting the climate?

• Yes

• No

Global Warming

• Increase of the Earth's average temperature

• Burning Fossil Fuels causes an increase in carbon dioxide.

Effects of Global Warming

• Warmer temperatures cause ice to melt, making sea levels rise.

• Higher sea levels causes flooding along coastal areas

Open Ended

How can global warming impact the environment?

Multiple Choice

Global warming takes place when the amount of carbon dioxide in the air

• increases.

• decreases

• stays the same

The Greenhouse Effect

• the trapping of the sun's warmth in a planet's lower atmosphere

• Without the greenhouse effect the Earth's surface will be too cold

Multiple Choice

Which are ways to prevent or reduce air pollution?

• clearing forests and burning fossil fuels

• measuring air quality and treating asthma

• using renewable resources and public transportation

Multiple Choice

Which occurrence is NOT a possible effect of global warming?

• melting ice

• a rise in sea level

• a decrease in ozone

Multiple Choice

pollution that forms when compounds react in sunlight

• global warming

• greenhouse effect

• photochemical smog

Multiple Choice

rain or snow with a low pH

• acid precipitation

• global warming

• Air Quality Index