Activities performed by living organisms
What is Biological
What is the process where plants use CO2 to make sugar
what is photosynthesis
Phosphorus is found in what
What is rocks and minerals
How much of our atmosphere is made up of nitrogen
What is 78%
Volcanic eruptions, rock formation, and plate tectonics
What is Geological
Animals use oxygen in the process of ______
What is respiration
it makes up important chemicals such as _____
what is DNA
Products rich in nitrogen
What is nitrate and ammonia
Formation of clouds, lightning, flow of water
what is chemicals/physical
What is a natural occurrence of CO2
What is volcanoes
Phosphorus is washed into what
What is basins
What are the nitrogen fixing bacteria called
What is nitrogen fixing bacteria
Mining and burning of fossil fuels, clearing of land, use of fertilizers
What is Human Activity
Huge deposits of carbon were stored as dead plants and animals _____
What is decayed
Phosphorus comes from man made ______
What is pollution
Nitrogen is returned by animals ____
What is waste
What are the 4 levels of classification
What is biological, geologica, chemical/physical, Human activity
What is the photosynthesis equation
What is 6co2+6h2o— c6h12o6+6o2
Too much phosphorus leads to
What is overgrowth
Nitrogen is returned by plants_____
What is decaying