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- 1. Multiple Choice
The effects of ozone depletion on humans includes all of the following, except
more cataracts
suppression of immune systems
more brain cancers
worse sunburns
more skin cancers
- 2. Fill in the Blank
Where is the largest result of ozone depletion found?
- 3. Multiple Choice
The drop in stratospheric ozone levels in the Southern Hemisphere (the "ozone hole") is most evident during which season?
Antarctic spring (October)
Antarctic autumn (April)
Antarctic summer only (January)
Antarctic winter only (July)
Both Antarctic summer and Antarctic winter (January and July)
- 4. Multiple Choice
Based on the graph, the reduction in CFCs is in direct correlation to the ratifying of the
Kyoto Protocol
Montreal Protocol
Copenhagen Accord
Paris Agreement
Clean Air Act
- 5. Multiple Choice
All the following are examples of reducing carbon dioxide levels in the troposphere through carbon sequestration, except
planting more trees
bringing more cropland into production
pumping it deep underground
growing more switchgrass
injecting it into the deep ocean
- 6. Multiple Choice
Chemicals capable of destroying ozone include all of the following, except
chlorofluorocarbons
formaldehyde used as a preservative
halons in fire extinguishers and crop fumigants
carbon tetrachloride used as a solvent
methyl bromide used as a fumigant
- 7. Fill in the Blank
In 1987, 36 nations meeting in Montreal, Canada, developed the Montreal Protocol to reduce production of
- 8. Multiple Choice
Which of the following gases does not deplete the ozone layer?
Chlorofluorocarbons
Methyl bromide
Halogens
Hydrofluorocarbons
Hydrochlorofluorocarbons
- 9. Fill in the Blank
What is the purpose of the stratospheric ozone?
- 10. Multiple Choice
Which of the following is true about the Antarctic ozone "hole"?
It is about the same area all year and it rotates clockwise around the South Pole
It is about the same area all year and it rotates counterclockwise around the South Pole
It appears and disappears without warning and with no discernable pattern
It is at its peak area during the Antarctic spring
It is at its peak area during the Antarctic winter
- 11. Multiple Choice
How do CFCs affect ozone production?
UV radiation frees a chlorine atom, which breaks down ozone.
UV radiation frees a fluorine atom, which breaks down ozone.
Infrared radiation frees a chlorine atom, which breaks down ozone.
Infrared radiation frees a chlorine atom, which breaks down ozone.
- 12. Multiple Choice
Though CFC production has been curtailed, the threat to upper atmospheric ozone continues because CFCs
become harmless quickly
persist but stop destroying ozone
destroy ozone for only a short time
persist and continue to destroy ozone for decades
- 13. Multiple Choice
How many ozone atoms can a single chlorine atom break down?
5,000
10,000
50,000
100,000
- 14. Multiple Choice
Which Ultra Violet Radiation does not pentrate to Earth's surface, because it is captured in the Stratospheric Ozone layer?
UV - A
UV - B
UV - C
UV - D
- 15. Fill in the Blank
Has ozone depletion began to decrease?
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