oxygen cycle
What process releases oxygen into the atmosphere?
what is Photosynthesis
What process allows plants to take carbon dioxide from the atmosphere?
what is Photosynthesis
In what form is carbon found in the atmosphere?
what is Carbon dioxide
What form of nitrogen makes up about 78% of Earth’s atmosphere?
what is Nitrogen
What two main processes remove oxygen from the atmosphere?
what is Respiration and combustion
How does cellular respiration move carbon through the carbon cycle?
what is Organisms release CO2 back into the atmosphere
What form of carbon is found in fossil fuels?
what is Hydrocarbons (coal, oil, natural gas)
What process converts atmospheric nitrogen into a usable form for plants?
what is Nitrogen Fixation
In what two major reservoirs is oxygen primarily found on Earth?
what is Atmosphere (O2) and water (H2O)
How does energy from the Sun drive the carbon cycle?
what is Solar energy powers photosynthesis, which moves carbon into living things
What form of carbon is stored in oceans?
what is Dissolved CO2 and carbonates
What role do bacteria play in the nitrogen cycle?
what is they fit nitrogen convert ammonia to nitrates and return nitrogen to the atmosphere
How does photosynthesis contribute to the oxygen cycle?
what is Plants use CO2 and sunlight to produce glucose and release O2
Name three major carbon reservoirs on Earth.
what is Atmosphere, oceans, living organisms, fossil fuels, rocks
What form of carbon is found in living organisms?
what is Glucose and organic molecules
Why is nitrogen important for living organisms?
what is it is needed to build proteins and DNA
Why is the oxygen cycle essential for most living organisms?
what is It provides oxygen for cellular respiration, which releases energy from food
Explain how fossil fuel combustion affects the carbon cycle.
what is It increases atmospheric CO2, contributing to climate change
What are carbonate rocks (like limestone), and how do they store carbon long term?
what is Sedimentary rocks made of calcium carbonate that store carbon for millions of years
How has the Haber-Bosch process changed the natural nitrogen cycle?
what is it produces synthetic fertilizer increasing available nitrogen but disrupting