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- 1. Multiple ChoiceWhat is another name for evaporation of water through the leaves of plants?TranspirationCondensationPrecipitationPercolation
- 2. Multiple ChoiceWhich of the following best explains why matter must travel through cycles?There is an unlimited amount of matter in the universe, so it can take on any form at any timeThere is a fixed amount of matter in the universe, so it must take on different forms at different times
- 3. Multiple ChoiceYou need water, carbon, and nitrogen to build _____, which are the building blocks of proteins!CellsNucleotidesAmino AcidsPhosolipids
- 4. Multiple ChoiceApproximately what percentage of Earth is covered in water?20%50%70%85%
- 5. Multiple ChoiceApproximately what percentage of water is available to us as drinking water?75%40%10%Less than 2%
- 6. Multiple ChoiceWhat is the process by which the surface of a liquid absorbs enough energy to change into a gas?PercolationEvaporationCondensationPrecipitation
- 7. Multiple ChoiceWhat is the process by which a gas changes to a liquid?PercolationEvaporationCondensationPrecipitation
- 8. Multiple ChoiceRain, sleet, snow, and hail are all forms of _____.PercolationEvaporationCondensationPrecipitation
- 9. Multiple ChoiceWhen water travels through the soil, and eventually collects as groundwater, this is known as _____.PercolationEvaporationCondensationPrecipitation
- 10. Multiple ChoiceUltimately, what drives the water cycle process?Solar (sun) energyChemical energyHeat from the Earth's coreCold fronts and warm fronts
- 11. Multiple ChoiceApproximately 78% of the Earth's atmosphere is made up of ____.OxygenWaterCarbon DioxideNitrogen
- 12. Multiple ChoiceWhich of the following best explains why nitrogen fixation must take place?Atmospheric nitrogen is unusable to plants and animalsNitrogen must be returned to the atmosphereAnimals must breathe in nitrogenNitrogen gets "stuck" in the soil and must be untrapped
- 13. Multiple ChoiceWhich of the following best explains how lightning is capable of nitrogen fixation?Lightning hits the soil and activates the nitrogen fixing bacteriaThe lightning energy causes free nitrogen atoms to bondThe lightning energy blasts nitrogen molecules apart
- 14. Multiple ChoiceWhich of the following is NOT a method capable of nitrogen fixation?EliminationLightningBacteriaHuman Factories
- 15. Multiple ChoiceMany nitrogen fixing bacteria are found in the roots of plants. The plants receive fixed nitrogen and the bacteria receive nutrients from the plant. This is an example of which type of symbiotic relationship?CompetitionMutualismParasitismCommensalism
- 16. Multiple ChoiceWhat process returns nitrogen back to the atmosphere?Nitrogen fixationEliminationDenitrificationDigestion
- 17. Multiple ChoiceWhat is the overall purpose of photosynthesis?To use energy from the sun to produce food for the plantTo use energy from the sun to produce oxygen for animals to breatheTo break down food in order to produce energy (ATP)To break down food in order to produce carbon dioxide
- 18. Multiple ChoiceWhat is the overall purpose of cellular respiration?To use energy from the sun to produce food for the plantTo use energy from the sun to produce oxygen for animals to breatheTo break down food in order to produce energy (ATP)To break down food in order to produce carbon dioxide
- 19. Multiple Choice
Using the image, how does carbon enter the biotic environment?Cellular RespirationPhotosynthesisDecompositionCombustion of fossil fuels - 20. Multiple ChoiceUsing the image, which of the following is NOT a way carbon returns to the atmosphere?Cellular Respiration of plantsPhotosynthesisCellular Respiration of animalsCombustion of fossil fuels
- 21. Multiple ChoiceWhich of the following best explains the idea behind "global warming"?There is not enough carbon being put back into the atmosphere, trapping solar heat.Photosynthesis is taking place more than ever, trapping solar heat.Humans have put too much carbon dioxide back into the atmosphere, trapping solar heat
- 22. Multiple ChoiceWhat makes the phosphorus cycle most different from the other nutrient cycles?Phosphorus ends up in the soilIt has a long term (inorganic) part and a short term (organic) partDecomposed plants and animals release phosphorus back into the environmentPhosphorus is naturally in an unusable form and must be "fixed" in order to be used
- 23. Multiple ChoiceHow have humans affected the phosphorus cycle?By burning too many fossil fuelsBy cutting down too many treesBy using fertilizers on plantsBy eliminating decomposers
- 24. Multiple ChoiceWhich of the following is NOT a reason phosphorus is an important nutrient?There are 3 phosphorus molecules present in every ATPPhosphorus is used to make glucose which plants and animals need to perform cellular respirationPhosphorus is an essential component of cell membranes and help create the phospholipid bilayerAll DNA nucleotides are composed of a sugar, a nitrogen base, and a phosphate molecule
- 25. Multiple ChoiceThe phosphorus cycle includes weathering and erosion.TrueFalse
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