Nitrogen is needed for good plant growth and helps them make proteins.
oxygen
oxygen
How to make gober gas plant
oxygen
Oxygen
Nitrogen is the most abundant element in the Earth's atmosphere. Bacteria in the soil 'fix' the nitrogen gas into compounds which can be taken in by plants; the plants get eaten by animals & they use the nitrogen to make proteins.
Nitrogen gas in the atmosphere is converted by nitrogen-fixing bacteria into a form that plants can absorb, such as ammonium or nitrate. Plants take up these nitrogen compounds from the soil through their roots and incorporate them into proteins. When animals eat plants, they obtain nitrogen from plant proteins, continuing the cycle.
Oxygen is the gas that animals use in respiration. Plants use both oxygen and carbon dioxide. (This is assuming you mean cellular respiration.)
oxygen
Plants continue to create Carbon Dioxide at Night.
Plants continue to create Carbon Dioxide at Night.
Carbon dioxide gas.