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- 1. Multiple Choice
How many layers is the atmosphere divided into?
three
four
five
- 2. Multiple ChoiceThe layer of atmosphere closest to the Earth is called themesospherestratospheretroposphereproctosphere
- 3. Multiple Choice
Most of the atmosphere is composed of this gas
nitrogen
oxygen
carbon dioxide
- 4. Multiple Choice
The stratosphere is located between
thermosphere and mesosphere
core and mantle
troposphere and mesosphere
exosphere and mesosphere
your head and Uranus
- 5. Multiple Choice
This gas makes up 21% of the atmosphere:
nitrogen
oxygen
argon
- 6. Multiple ChoiceThe ozone layeris green and purpleabsorbs dangerous solar radiationsmells like sulphuris made of carbon dioxide
- 7. Multiple ChoiceThe greenhouse effect causes the Earth's air toheat upcool downblow upturn brown
- 8. Multiple ChoiceThe ozone layer occurs in thetropospherethermospherestratosphereexosphere
- 9. Multiple ChoiceIf the ozone layer were to be completely destroyed life on Earth wouldgrow largerget smallerdie from too much solar radiationstay the same
- 10. Multiple ChoiceAs altitude increases, the air pressuredecreasesstays the sameincreasesall of the above
- 11. Multiple Choice
The horizontal movement of air is called_____________:
ozone
wind
current
- 12. Multiple ChoiceWhat is a true fact about the mesosphere?it is the hottest layermeteors burn up herethe ozone layer is found hereNorthern Lights happen here
- 13. Multiple ChoiceA layer of air that surrounds Earth to keep us warm is called ...atmosphereSun's raysozone layerair pressure
- 14. Multiple Choice
What protects Earth from ultraviolet rays from the sun?
ozone layer
mesosphere
air pressure
troposphere
- 15. Multiple Choice
Which layer comes after the Mesosphere?
stratosphere
exosphere
thermosphere
ionosphere
- 16. Multiple Choice
What gas makes up the majority of the atmosphere?
oxygen
nitrogen
water vapor
carbon dioxide
- 17. Multiple Choice
Which layer of the atmosphere is closest to outer space?
mesosphere
exosphere
troposphere
stratosphere
- 18. Multiple ChoiceSource of all energy in our atmosphereionswater cycleThe MoonThe Sun
- 19. Multiple Choice
Heated air moves in which direction?
up
down
right
left
- 20. Multiple ChoiceThe hottest layer.tropospherethermosphereexospheremesosphere
- 21. Multiple ChoiceWhat does the earth's atmosphere do?help to regulate the temperature on EarthHelp UV rays to reach the Earth's surfaceCreates meteors in the skyKeep ocean waters cold
- 22. Multiple ChoiceAs you go higher in the troposphere, the temperature _______________.decreasesincreasesstays the samegets very hot
- 23. Multiple ChoiceThis is the layer where most commercial jet airliners fly.TroposphereStratosphereMesosphereThermosphere
- 24. Multiple Choice
In which layer of the atmosphere would you find the top of Mount Everest?TroposphereStratosphereMesosphereThermosphere - 25. Multiple Choice
Which gas is the primary (most abundant) gas in Earth"s atmosphere?
Oxygen
Argon
Nitrogen
Carbon Dioxide
- 26. Multiple Choice
The atmosphere is.....
an area of high gravitational pull.
a mix of gases, liquids and solid particles.
only 10 kilometers deep.
primarily composed of oxygen.
- 27. Multiple Choice
Ozone is composed of .....
two atoms of oxygen.
three atoms of oxygen.
nitrous oxide.
methane and carbon dioxide.
- 28. Multiple Choice
How do scientists determine where one layer of the atmosphere ends and the next begins?
Changes in temperature.
Changes in atmospheric pressure.
Changes in air density.
Changes in concentration of oxygen and nitrogen.
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