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Nitrogen Cycle
Carbon Cycle
Water Cycle
Atmosphere
100
What converts nitrogen gas (N2) into other forms used by trees?
What is tiny organisms
100
The carbon cycle converts Carbon dioxide into?
What is Oxygen
100
What powers the water cycle?
What is the Sun
100
What is the term for the layers of gas that surround our planet?
What is the atmosphere
200
Soil and plants release nitrogen back into the atmosphere in what form?
What is a gas
200
Plants receive carbon from the atmosphere through a process called?
What is photosynthesis
200
Water rises from oceans, rivers, and lakes into the atmosphere through the process of?
What is evaporation
200
What increases as you get further away from the planets surface?
What is altitude
300
Decaying leaves release nitrogen gas back into the what (two answers)?
What is the atmosphere
300
Animals inhale oxygen and exhale carbon dioxide through the process called?
What is respiration
300
Water vapor turns into droplets in the clouds through the process of?
What is condensation
300
What decreases as you get further away from Earth's surface making it harder to breathe?
What is air density
400
Dead animals and plants release nitrogen back into the soil through a process called?
What is decomposition
400
Animals get carbon by __________ of other plants and animals?
What is eating
400
Water droplets fall from the sky in the process of?
What is precipitation
400
What is the most abundant gas in our atmosphere?
What is Nitrogen
500
Once in the atmosphere, how does nitrogen return directly to the soil?
What is through lightning
500
Once an organism has decayed, the carbon can be extracted from the soil and used as what to power our cars and electricity?
What is fossil fuels
500
Water is evaporated from leaves and plants and released into the atmosphere through the process of
What is transpiration
500
What is the name for the rest of the elements and gases that make up our atmosphere. They only account for about 1% of our atmosphere's make-up.
What is Trace Elements