Carbon cycle
What plants use in the process of photosynthesis to make sugar and oxygen
What is CO2
Mostly found in rocks and minerals and not the free state in nature
What is phosphorus
The percentage out atmosphere is in nitrogen gas
What is 78%
Activities performed by living organisms
What is biological
The main regulator of CO2 in the atmosphere
What is the Ocean
An essential nutrient for life; makes up important chemicals such as DNA
What is phosphorus
Can’t directly use all nitrogen found in our atmosphere
What is plants and animals
Volcanic eruptions, rock formations, and plate tectonics
What is geological
Deposits burned as fossil fuels
What is coal, oil, and natural gas
Uses Phosphorus and waste products return sulfur for the next genreaction
What is animals
A special bacteria that directly uses nitrogen and “fixes” it so other organisms can benefit
What is nitrogen-fixing bacteria
The chemical substances that an organism needs to sustain life
What is nutrients
The photosynthesis equation
What is 6CO2 + 6H2O->C6H12O6 + 6O2
Leads to plant overgrowth
What is too much phosphorus
Higher organisms use nitrogens to make these
What is proteins
Within each of the cycles
What is oxygen, water, carbon, nitrogen, and phosphorus
Another natural source for CO2
What is volcanoes
Phosphorus in soils wash away into these
What is water basins
animal waste and bacteria create these products for the use of plants to use again
What is ammonia and nitrate
Nutrients whose supply limits productivity
What is a limiting nutrient