Most organisms _______ use nitrogen gas, therefore nitrogen needs to be ______?
cannot, fixed
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15
What is nitrogen used for?
building protein in animals
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What is Precipitation?
precipitation: rain, snow, sleet, or hail.
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15
Describe the oxygen cycle?
. Producers release oxygen as a product of photosynthesis. Most organisms take in oxygen from the air or water and use it to carry out cellular respiration
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monster
Reset all scores!
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seesaw
Swap points!
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rocket
Go to first place!
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lifesaver
Give 25 points!
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15
What does The Law of Conservation of Energy state?
The Law of Conservation of Energy states that when one form of energy is transformed to another, no energy is lost in the process.
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baam
Lose 25 points!
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gift
Win 25 points!
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rocket
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baam
Lose 20 points!
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15
Who takes in carbon in the carbon cycle?
Most producers take in carbon dioxide gas from the air during photosynthesis.
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15
How much of the air is nitrogen gas?
78%
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How do clouds form?
The water droplets collect around dust particles and eventually form clouds.
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15
What has been one of the main cause of an increase in global temperature?
Burning of fossil fuels
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15
The nitrogen cycles from ________ to ___________ many times
producers; consumers
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trap
No points!
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fairy
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shark
Other team loses 25 points!
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thief
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15
What are the three process of the water cycle?
Evaporation, condensation, Precipitation
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What is Evaporation?
Evaporation is the process by which molecules at the surface of liquid water absorb enough energy to change to a gas.
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15
Who performs nitrogen fixation?
Certain bacteria that live on the roots of legume plants
