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- 1. Multiple Choice
Earth is surrounded by an envelope of gases called the _____________.
Hydrosphere
Solar system
Atmosphere
Cloud bubble
- 2. Multiple Choice
__________ gas occupies the major part of composition of air.
Nitrogen
Oxygen
Carbon dioxide
- 3. Multiple Choice
The burning of fuel produces ______.
Dew
Wind
Smoke
- 4. Multiple ChoiceWhat do dust, smoke, salt, and chemicals have in common?They are gases in the air.They make up water vapor in the air.They are particles in the air.They are only found in pure air.
- 5. Multiple Choice
___________ gas is necessary for burning
Oxygen
Nitrogen
Carbon dioxide
- 6. Multiple ChoiceWhat are the percentages of the main gases on Earth?78% oxygen, 21% nitrogen and 1% other78% other, 21% oxygen and 1% nitrogen78% nitrogen, 21% oxygen and 1% other95% carbon dioxide and 5% oxygen
- 7. Multiple Choice
Which gas is released into the atmosphere by plants following photosynthesis?
Oxygen
Argon
Carbon dioxide
Nitrogen
- 8. Multiple ChoiceWhich of these makes up about 21 percent of the atmosphere?argoncarbon dioxidenitrogenoxygen
- 9. Multiple Choice
What layer protects us from the sun's harmful rays?
Protection layer
Ozone layer
Atmospheric layer
- 10. Multiple Choice
How to prevent air pollution?
To plant trees
To use bicycles or public transport instead of using private vehicles.
All of the mentioned.
To share the seat in car or bike to other person or the friend who is coming or going to the same destination or place where we are going to go to
- 11. Multiple Choice
What is air?
Air is found everywhere. We cannot see air, but we can feel it.
Air in motion is called wind.
Air occupies space.
Air is present in water and soil.
Known as atmosphere.
Air is resent everywhere
- 12. Multiple Choice
______ from cars makes the air dirty.
Smell
Smoke
Smoge
- 13. Multiple Choice
The component of air used by green plants to make their food, is ___________.
Ozone layer
Carbon di-oxide
Hydrogen
Argon
- 14. Multiple Choice
Look at the photo. This is an example of _____ pollution.
Water
Air
Land
- 15. Multiple Choice
Air takes up __________
Water
Weight
Space
- 16. Multiple ChoiceWhat are the pollutants known to cause acid rain?nitrogen oxides and sulfur dioxide (sulfur compounds)Low pH and AcidLemon Juice and Battery AcidParticulate Matter and Carbon Dioxide
- 17. Multiple Choice
Smog or ground ozone forms in the troposphere. Which pollutants are most responsible for smog or ground ozone?
sulfur and particulate matter
volatile organic compounds and nitrogen oxides
carbon monoxide and carbon dioxide
none of these answers are correct
- 18. Multiple ChoiceCFC's cause harm to ourTroposphereInversion LayerOzone LayerCarbon Dioxide
- 19. Multiple ChoiceBurning fossil fuels cause ________ that cause pollution.temperature decreaseheadachesemissionsnatural pollution
- 20. Multiple ChoiceThese are two ways people can reduce air pollution.Drive vehicles that get low gas mileage / Burn trash at homeBurn less fossil fuels / walk and ride bikesCreate major forest fires / Use CFC'sBurn styrofoam at landfills / Use more chlorine
- Answer choicesTagsAnswer choicesTags