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- 1. Multiple Choice
Which of these sets of three items produce CFCs
cars, factories, and cardboard
spray cans, cardboard, insulation
spray cans, refrigerators, cardboard
spray cans, refrigerators, air conditioner
- 2. Multiple ChoiceWhat absorbs ultraviolet rays in the atmosphere?tropospherestratosphereozone layergreenhouse gases
- 3. Multiple Choice
How many oxygen atoms does a molecule of ozone contain?
1
2
3
4
- 4. Multiple Choice
Where is the "GOOD" ozone located?
troposphere (0-7 miles)
stratosphere (9-31 miles)
mesosphere (32-80 miles)
thermosphere (80-500 miles)
- 5. Multiple Choice
What chemical is responsible for breaking up the ozone?
CFCs
Carbon Dioxide
Nitrogen
Oxygen
- 6. Multiple ChoiceThis protects us from harmful UV rays from the sunTroposphereStratosphereGreenhouse EffectOzone Layer
- 7. Multiple ChoiceThe Montreal Protocol banned the use of CFCs. What so they hope this will do for the ozone layer?Deplete it completelyMake the ozone hole smallerMake the ozone hole largerThin the layer to allow more gas to escape
- 8. Multiple ChoiceThe ozone layer protects us fromUV raysCFCsIncreased atmospheric heatDecreased atmospheric heat
- 9. Multiple Choice
How can we protect ourselves from UV rays?
Wearing hats when we go outside
Using sunscreen on a daily basis
UV rays cannot harm you they are good for your health
Long exposure to the sun protects you from UV rays
- 10. Multiple Choice
Which of these is a consequence of global warming to our oceans? (choose all that apply)
Acidification: Ocean is becoming more acidic.
Sea level is rising due to land ice melting.
Coral bleaching which results in them dying.
Animals are getting strangled by plastic 6 pack rings.
- 11. Multiple Choice
Corals are...
plants
algae
animals
bacteria
- 12. Multiple Choice
The coral and the algae have what type of relationship?
parasitic
mutualistic
commensalistic
no relationship at all
- 13. Multiple Choice
The pH of the oceans is becoming more
acidic or has a pH of 8 or higher
neutral with a pH of 7
Basic or has a pH of 8 or higher
Acidic or has a pH of less than 7
- 14. Multiple Choice
Why is the ocean becoming more acidic?
The water is absorbing more CO2 from the use of fossil fuels causing the pH to change from neutral to acid
The water is getting colder because the poles are melting causing the pH to change from basic to neutral
The water is absorbing more CO2 from the use of fossil fuels causing the pH to change from basic to acidic
The water is getting colder because the poles are melting causing the pH to change from neutral to acid
- 15. Multiple Choice
Corals are important because
They are important to the ocean's biodiversity
They serve as habitat for many aquatic species
They protect shores from storm surges
All of the above
- 16. Multiple Choice
A change in pH in the ocean water...
Causes algae to leave the coral, leaving the coral without the energy it gets from the algae, and eventually dying
Causes the coral to leave the algae
Causes fish that live in the coral reef to move to colder water
- 17. Multiple ChoiceThe pH scale is a range from:1-70-141-51-20
- 18. Multiple ChoiceA(n) _______ is a substance with a pH greater than 7.BaseAcidBufferWater
- 19. Multiple ChoiceWhat is the only substance with a neutral pH of 7?MilkOrange JuiceWaterBlood
- 20. Multiple ChoiceA solution with a pH of 10 is mixed with a solution with a pH of 4. What would the pH of the mixture most likely be?104407
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