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- 1. Multiple ChoiceWhen humans burn fossil fuels, most of the carbon quickly enters the as carbon dioxide.WaterAtmosphereSunAir
- 2. Multiple ChoiceCombustion is another word for _______________.a traina busa dogburning
- 3. Multiple ChoiceWhat does not produce carbon dioxide?PhotosynthesisBurning Fossil FuelsAnimal respirationPlants decaying
- 4. Multiple ChoiceHow do living organisms return carbon to the atmosphere in the carbon cycle?respiration and photosynthesisdecomposition and respiration
- 5. Multiple Choice
In what process is Carbon transformed into chemical energy?PhotosynthesisRespirationPrimary ProductionSecondary Production - 6. Multiple ChoiceWhen humans burn fossil fuels, most of the carbon quickly enters the as carbon dioxide.WaterAtmosphereSunAir
- 7. Multiple ChoiceWhich of the following removes carbon from the atmosphere?CombustionRespirationPhotosynthesisDeath
- 8. Multiple ChoiceCarbon can be found in...?The atmosphereInside of the EarthFossil fuelsAll of the above!
- 9. Multiple ChoiceCarbon dioxide is produced by the burning of fossil fuelsTrueFalse
- 10. Multiple Choice
The circulation of the element Carbon among Earth's atmosphere, land, oceans, and organisms is called _____________.
the Carbon Cycle
the Oxygen Cycle
the Carbon dioxide Cycle
the Water Cycle
- 11. Multiple Choice
_____________ is an essential element of all living creatures.
Gold
Carbon
Carbon dioxide
Silver
- 12. Multiple Choice
Carbon is used in the process called __________ by plants and algae to make food and the building blocks for growth.
carbon cycle
life
photosynthesis
decomposition
- 13. Multiple ChoiceWhich process converts carbon in the form of sugar into carbon dioxide gas?BioremediationPhotosynthesisRespirationTranspiration
- 14. Multiple Choice
Which is a true statement?
Humans depend on oxygen, plants depend on carbon dioxide
Plants produce carbon dioxide
Humans depend on carbon dioxide, plants depend on oxygen
Humans don't depend on plants for the air they need
- 15. Multiple Choice
Plants use ____________ to make their own food
Water
Sunlight
Carbon dioxide
All of these
- 16. Multiple Choice
How do plants affect the air that animals and people breathe?
Plants use oxygen from the air to make their own food
Plants release pollution into the air
Plants take in carbon dioxide and release oxygen
Plants take in oxygen and release carbon dioxide
- 17. Multiple Choice
Which gas do plants release, that humans depend on for survival?
Water
Carbon Dioxide
Oxygen
Sugar
- 18. Multiple Choice
Which gas do animals release, that plants depend on for survival?
Carbon dioxide
Oxygen
Sunlight
Water
- 19. Multiple Choice
Carbon is found in
all living things
all dead things
all elements and compounds
all non-living things
only water
- 20. Multiple Choice
Over ________________ of years, once-living matter that remains in the ground can transform into fossil fuels.
millions
hundreds
thousands
a few handful
- Answer choicesTagsAnswer choicesTags