1. Pollution and atmosphere Review
A, B, C, or D?
3…2…1… UP!

2. Question 1 Has the ozone layer, absorbs UV Contains all oxygen
Why is the stratosphere important?
Has the ozone layer, absorbs UV
Contains all oxygen
Protects life from acid rain
Used for satellite communication

3. Question 2 Which of the following is TRUE?
Point source pollution comes from multiple, known places.
Point source pollution only occurs in water.
Point source pollution comes from a single, known site.
Point source pollution happens only in rural areas.

4. Question 3 Air density Air pressure Temperature Weather
Scientists divide Earth’s atmosphere into main layers based on changing ________
Air density
Air pressure
Temperature
Weather

5. Question 4
Which of the following would be considered non-point source pollution?
Damaged water pipe under city street
Leaking tank at a gas station
Train car derails and spills chemicals
Chemical run-off from farm fields

6. Question 5 Nitrogen and water vapor Carbon dioxide and oxygen
What are the two most common gases in our atmosphere?
Nitrogen and water vapor
Carbon dioxide and oxygen
Oxygen and nitrogen
Nitrogen and ozone

7. Question 6
What do some scientists believe to be the cause of the hole in the ozone layer?
Carbon monoxide
Chlorofluorocarbons (CFCs)
Ultraviolet radiation
Carbon dioxide

8. Question 7 Dense, innermost layer Thin air, very high temperatures
Which best describes the troposphere?
Dense, innermost layer
Thin air, very high temperatures
Gradually blends with outer space
Holds electrically charged ions

9. Question 8 The atmosphere gets thinner.
If burning fossil fuels continues to add more carbon dioxide to the air, what might happen?
The atmosphere gets thinner.
The amount of carbon dioxide decreases.
Global temperatures will rise.
Ozone will cause temperatures to decrease.

10. Question 9 automobiles Factories Deforestation All of the above
Which of the following might increase the amount of carbon dioxide in the air?
automobiles
Factories
Deforestation
All of the above
Only A and C

11. Question 10
Toxins show up in the water wells of a small town. The residents also notice damage to local pine trees. The toxins are produced by a factory that is miles away. What happened ?
Smoke released from the factory became acid rain.
A polluted stream from a different city brought those chemicals.
Trucks carrying shipments of the chemical spilled near the town.
A chemical mist was carried from the factory towards the town.

12. Question 11
What can farmers do to prevent excess nutrients from entering the watershed?
Use the least amount of fertilizer possible
Keep manure in a pile in the field
Use water hoses to rinse crops off
Use airplanes to spread pesticides

13. Question 12 Troposphere Stratosphere Mesosphere Thermosphere
Which layer of the atmosphere protects Earth’s surface from meteoroids?
Troposphere
Stratosphere
Mesosphere
Thermosphere

14. Question 13 Which of the following is FALSE?
Some air pollution occurs naturally.
Some air pollution is caused by human activity.
Motor vehicles cause more than half of the human-related air pollution.
Smoke and ash from a volcanic eruption do not count as air pollution.

15. Question 14 Ozone Solar energy Water vapor Oxygen
Some parts of the atmosphere are “warmer” because they contain gases that absorb __________ .
Ozone
Solar energy
Water vapor
Oxygen

16. Question 15 Which of the following is TRUE?
Less molecules in a given volume = greater density
Density is the column of air pushing down on an area
As altitude increases, air pressure increases
As altitude increases, air pressure decreases

17. Question 16 Bad stuff Pores Pollutants Ions
What do we call harmful substances in air, water, or soil?
Bad stuff
Pores
Pollutants
Ions

18. Question 17 Which of the following is FALSE?
Phosphorus and nitrogen cause algal bloom.
Fertilizers cause algae growth to decrease.
Decomposers use oxygen to break down algae.
Fish become sick and die with less oxygen in the water.

19. Question 18 London-type smog Photochemical smog Acid rain
What forms in large cities when sunlight acts on pollutants?
London-type smog
Photochemical smog
Acid rain
None of the above

20. Question 19
Which term means how easily water flows through the spaces between soil and rock particles?
porosity
flowability
permeability
velocity

21. Question 20 Acid rain can form from burning fossil fuels.
Which of the following is FALSE?
Acid rain can form from burning fossil fuels.
Acid rain can make pine needles fall off.
Acid rain can cause lakes and ponds to be unlivable.
Acid rain is not harmful to the soil it falls on.