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Among nitrogenous fertilizers, ammonium sulfate (N2H8O4S) typically supplies a high amount of nitrogen by weight, providing around 21% nitrogen. In comparison, other nitrogen sources like urea (46% nitrogen) offer higher nitrogen content but may not be categorized under the NPK (Nitrogen, Phosphorus, Potassium) classification. The nitrogen ion itself is not a fertilizer but rather a component of various fertilizers. Therefore, when considering weight percent of nitrogen supplied, ammonium sulfate is significant, but urea offers the highest nitrogen content by weight.
Aerobic bacteria are classified in the domain Bacteria, phylum Proteobacteria, class Gammaproteobacteria, and order Pseudomonadales. They thrive in the presence of oxygen and are important for processes like decomposition and nitrogen fixation.
Nitrogen-fixing bacteria can be classified as autotrophs when they use inorganic substances to synthesize their own organic compounds. These bacteria, such as those found in the genus Rhizobium, convert atmospheric nitrogen into ammonia, which can then be used by plants. While they can be autotrophic in their nitrogen-fixing capabilities, some nitrogen-fixing bacteria are also heterotrophic, relying on organic compounds from their environment. Therefore, their classification as autotrophs depends on their specific metabolic processes.
There are three main types of gaseous air pollutants. The first is sulfur dioxide, the second is oxides of nitrogen, and the third is the pollution of ozone.
Nitrogen is a gaseous element, that is, what is in nitrogen is nitrogen.
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Solid nitrogen is called "nitrogen ice" or "nitrogen snow".
Nitrogen is a non-metal element located in group 15 of the periodic table. It is typically classified as a gas at room temperature and makes up about 78% of Earth's atmosphere. In terms of chemical properties, nitrogen is known for its ability to form multiple stable compounds due to its tendency to exhibit various oxidation states.
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Nitrogen is!
Nitrogen atoms, of course. Naturally occurring nitrogen has two isotopes: nitrogen-14 and nitrogen-15.