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Cycle in which plants turn gas in air into oxygen
carbon-oxygen cycle
water falling from clouds
precipitation
water turning into water vapor
evaporation
cycle in which a gas in the air is fixed into a form that plants can use
nitrogen cycle
water vapor turning into water
condensation
plants losing water through their stomata
transpiration
cycle in which water moves through the environment
water cycle
process of releasing energy from food
respiration
provides energy for plants to grow
sunlight
plants release _____ into the atmosphere as a byproduct of photosynthesis
oxgen
Plants and animals release _________ as a product of respiration.
carbon dioxide
During ______, plants use sunlight, water, and carbon dioxide to make their own food.
photosynthesis
Which of the following does NOT produce carbon dioxide?
people burning fuels
plants using sunlight
people breathing
animals breathing
plants using sunlight
Which of the following return tot eh soil in animal waste?
nitrates and oxygen
ammonia and oxygen
ammonia and nitrates
oxygen and bacteria
ammonia and nitrates
Plants make protiens from
nitrates in the soil
In what process do bacteria and fungi break down a dead organism's tissues and use some of the carbon as food?
decay
