NO3 is a form of nitrogen that can be utilized by plants.
What is an NO3?
The chemical formula for the polyatomic ion nitrate is NO3. The word "nitrates" refers to salts that include this ion. Many fertilizers and explosives have nitrates as a component. Water can dissolve almost all inorganic nitrates.
What is an nitrogen?
In Group 15 [Va] of the periodic table, nitrogen (N) is a nonmetallic element. The most prevalent element in the atmosphere of Earth is this colorless, flavorless, and odorless gas, which is also a component of all living things nitrogen.
Therefore, NO3 is correct answer.
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