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- 1. Multiple ChoiceCarbon dioxide is absorbed by producers to make what in photosynthesis?oxygencarboncarbohydrateswater
- 2. Multiple ChoiceWhen is most of the carbon dioxide that is exhaled from plants formed?respirationcirculationphotosynthesiswhen it starts the carbon cycle
- 3. Multiple ChoiceWhen humans burn fossil fuels, most of the carbon quickly enters the _______ as carbon dioxidewateratmospheresunair
- 4. Multiple ChoiceWhich of these does not add CO2 to the atmospherecooking with gasplanting treesburning woodriding in a bus
- 5. Multiple ChoiceCombustion is another word forburningmeltingexplodingincinerating
- 6. Multiple ChoiceHow do living organisms return carbon to the atmosphere in the carbon cyclerespiration and decompositionrespiration and photosynthesisdeathburning
- 7. Multiple ChoiceHow does the carbon in grass become part of a living animal?by eating the grassIt doesn't end up in the animal no matter whatIt ends up in its food chainIt breathes in carbon given out by the plant
- 8. Multiple ChoiceWhy is the increase in greenhouse gasses an issueIt causes climate change and increase in the global temperatureIt can lead to a major increase in greenhousesIt leads to more factoriesIt causes a moajor decrease in people
- 9. Multiple ChoiceWhat process keeps Earth's temperature suitable for lifeConvention currentsGreenhouse EffectAlbedo EffectWater Cycle
- 10. Multiple ChoiceWhat is a carbon footprintthe total amount of greenhouse gases that are emitted into the atmospherethe release of gasa place or environment where a plant or animal naturally or normally lives or growsa certain type of greenhouse gas
- 11. Multiple ChoiceWhy does too much carbon dioxide in the atmosphere cause climate change?It cools our planetBlocks out UV raysTraps heat and warms planetLets light escape
- 12. Multiple ChoiceWhich is a greenhouse gasmethaneOxygenHydrogenAmmonium
- 13. Multiple ChoiceWhich of the following adds oxygen to the atmosphereforest firesphotosynthesisweathering of rockslife processes of animals
- 14. Multiple ChoiceWhat does CFC stand forCarbon Fiber ChlorineChlorofluorocarbonCare for CarbonCarbon Footprint Caste
- 15. Multiple ChoiceHow do humans affect the carbon cycleInhaling oxygenExhalation of carbon dioxideUsing CFCsWearing sunscreen
- 16. Multiple ChoiceHow are the burning of fossil fuels and volcanic eruptions similar with respect to their effects on the carbon cycleboth remove carbon from the atmosphereboth aff carbon to the atmosphereboth add carbon to the lithosphereboth remove carbon from the lithosphere
- 17. Multiple ChoiceDeforestation contributes to the greenhouse gasses byloss of trees that would otherwise remove carbon dioxide from the airas trees are cut, they release carbon dioxideincreasing the amount of oxygen in the air
- 18. Multiple ChoiceCarbon is stored intrees and other living thingsoceansunderground in soil and fossil fuelsall are correct
- 19. Multiple ChoiceWater vapor is a greenhouse gasTrueFalse
- 20. Multiple ChoiceWhat is the mixture of gases surrounding the Earth calledatmospherecarbonconcentrationemissions
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