Water Cycle
Earth is covered by this much water (%)
What is around 70%
These two ways are how nitrogen gets fixed
What is lightning and nitrogen fixing bacteria
Plants use these three things to make their food
What is Carbon Dioxide, water and sunlight
The atomic symbol for nitrogen.
What is N?
When water changes from a liquid to a gas
What is evaporation
Name up to three usable forms or nitrogen
What are nitrites, nitrates and ammonia
There would be too much CO2 in the atmosphere if not for these members of the biosphere
What is plants
The atomic symbol for carbon
What is C
These two things can happen to water when it returns to Earth
What is run-off and collection
These produce extra nitrogen
What is fertilizers and burning of fossil fuels
These molecules get exchanged when animals breathe
What is the inhalation of Oxygen and the exhalation of Carbon-dioxide
The process of converting atmospheric nitrogen into ammonia. Think "fixing it".
What is nitrogen fixation?
Process where plants return water vapor to the environment
What is transpiration
The form of nitrogen in the air
What is N2 in the atmosphere
The process that plants use to make glucose using water, sunlight and carbon dioxide.
What is photosynthesis
This is the name for animal or plant remains
What is detritus?
When water changes from a solid to a gas
What is sublimation
This would happen in the nitrogen cycle if there were no decomposers
What is all the nitrogen compounds would be trapped in the organisms. Cycle would end!
Carbon Dioxide and Oxygen must be exchanged and cycled because
Without this cycle producers and consumers could not get their energy and continue living
Living things use nitrogen to create these
What is DNA and proteins