Show:
Global Warming
Outdoor & Indoor
Air Pollution
Air Pollution and Human Health
Air Pollution and the Environment
Ozone & CFC's
100
What is the primary gas causing global warming?
Carbon Dioxide
100
Which gas is the primary component of the atmosphere?
Nitrogen
100
What indoor air pollution is the deadliest (causes the most deaths?)
Cigarette smoke
100
What is the pH level of acid rain?
pH of 5.5 or lower.
100
What does ozone in the atmosphere protect the earth from?
Ultraviolet (UV) rays of light
200
What happens when greenhouse gas amounts increase
Global Warming (increase in Earth's temperature)
200
What are two type of air pollution that is caused naturally?
1. Air Pollen 2. Volcanic eruptions 3. Forest Fires 4. Sand/dust storms. 5. Gases from decaying organisms.
200
List two diseases cigarette smoke cause?
1. cause lung cancer 2. cause emphysema
200
What is "thermal inversion."
Smoke and fog (smog) trapped between warm & cool air layers.
200
What the two types of ozone and which is good and bad? Must describe the formation of each
Ozone in atmosphere - good (naturally occurring) Ozone close to ground - bad (anthropogenic)
300
What are two causes of increased CO2 in the atmosphere?
1. Increased use of of fossil fuels 2. Fewer plants absorbing CO2
300
When did air pollution problems begin?
Industrial revolution of 1800's
300
What are three sources of indoor air pollution effecting humans (must identify the source and human health impact for each)?
1. Cigarette smoke 2. Molds 3. Carbon Monoxide poisoning 4. Radon Gas
300
What can be added to acidic soil or water to neutralize acidity.
Powdered lime (calcium carbonate) CaCO3
300
What are two sources of CFC's?
1. Freon in fridgerators. 2. Propellants in aerosol cans 3. Used in constructing styrofoam
400
What are four effects of global warming?
1. Earth's temperature rising 2. Ice in the polar caps melt 3. Sea levels rising 4. Saltwater contaminating fresh water. 5. Weather patterns changing 6. Decrease in crop yields.
400
Why is air pollution considered a global problem?
Air pollution does not stay in one place, constantly moving from one country to another.
400
name one example of VOCs and describe human impact and prevention methods
formaldehyde headaches, respiratory tract irritation, eye irritation, skin rash improve ventilation or use formaldehyde free materials (substitute for safer materials)
400
What are two affects of acid rain on plants?
1. leaching important minerals from the soil (soil depletion) 2. Prevents sprouting of seeds 3. May destroy entire forest.
400
What are three effects of too much exposure to UV light.
1. Sunburn 2. Blindness 3. Skin Cancer 4. Crop damage 5. Death/mutations to organisms.
500
Why is the Greenhouse effect so pronounced on Venus?
There are no Plants to absorb the CO2.
500
Describe the formation of ground level ozone
Nox + VOCs + sunlight ---> O3
500
describe the source or radon and prevention methods
Radon- naturally occurring radioactive gas from uranium prevention- cracks in the foundation of building must be sealed and proper ventilation system
500
What are two ways acid rain affect humans?
1. Destroys/damages monuments & statues. 2. Destroys/damages personal property such as car paint, corrodes car tires, corrodes steel on homes & cars, etc. 3. decrease in crop yield --> hunger
500
describe the destruction of ozone layer caused by CFCs. you may use chemical equation to support your answer
CCl2F+ UV --> CCl2F +Cl free Cl +O3 --> ClO +O2 Free Cl can destroy up to 100,000 O3