Show:
carbon cycle
nitrogen cycle
phosphorus cycle
water cycle
global warming
100
what needs carbon to perform photosynthesis
What is plants
100
what creatures can use atmospheric nitrogen?
What is nitrogen-fixing bacteria
100
what is a part f many molecules that make up the cells of living organisms
What is phosphurus
100
what is it called when water falls from the sky?
What is rain
100
what is global warming ?
What is the heating up or warming of the globe
200
what is the periodic symbol for carbon
What is C
200
where do nitrogen-fixing bacteria live?
What is in the roots of legumes
200
what is needed t build bones and teeth in animals
What is phosphorus?
200
what is percipitation?
What is snow, rain, hail, etc.
200
what causes this heating?
What is the release of carbondioxide
300
where does the CO2 go when burning fossils fuels
What is the atmosphere
300
what do animals need nitrogen for?
What is to build proteins.
300
where does phosphorus come from
What is rock deposits, living organisms, and the ocean?
300
what happens when water evaporates
What is the sun turns water into water vapor and puts it into clouds.
300
what releases carbondioxide
What is the burning of fossil fuels
400
how do humans affect the carbon cycle
What is burning fossil fuels and releasing them into the atmosphere
400
what do these bacteria put into the nitrogen to make it useable by other living things?
What is nitrates
400
what happens when rocks erode?
What is small amounts of phosphorus dissolving into phosphate
400
does water cover ore or less than 50% of the earth?
What is more
400
what does the carbon dioxide act like?
What is a blanket
500
how many tons of carbon are release by burning fossil fuels each year
What is 6 billion million metric tons
500
what are these bacteria considered to be classified as?
What is decomposers
500
where do plants absorb phosphates from?
What is their roots
500
what percent of water covers the earth?
What is 72%
500
what causes these fossil fuels to be burned and used?
What is the HUMAN RACE