Nitrogen example sentences

After the harvest, the soil becomes deficient in nitrogen.Another anomaly is the smaller first ionization enthalpy of oxygen compared to nitrogen.Many nitrogen containing substances, ions, CO2, water, etc.Fertilizers supply nitrogen, phosphorus and potassium.Consequently there are six groups of p–block elements in the periodic table numbering from 13 to 1 Boron, carbon, nitrogen, oxygen, fluorine and helium head the groups.Smoke may contain oxides of nitrogen which combine with other air pollutants and fog to form smog.These green plants thus turn into green manure which helps in enriching the soil in nitrogen and phosphorus.Most commonly, the nitrogen-fixing bacteria are found in the roots of legumes (generally the plants which give us pulses) in special structures called rootnodules., in the filtrate are reabsorbed actively whereas the nitrogenous wastes are absorbed by passive transport.Nitrogen is thus an essential nutrient for all life-forms and life would be simple if all these life-forms could use the atmospheric nitrogen directly.Reptiles, birds, land snails and insects excrete nitrogenous wastes as uric acid in the form of pellet or paste with a minimum loss of water and are called uricotelic animals.Tropospheric pollution is basically due to various oxides of sulphur, nitrogen, carbon, halogens and also due to particulate pollutants.This can be done by reducing the emission of sulphur dioxide and nitrogen dioxide in the atmosphere.As mentioned earlier, burning of fossil fuels (which contain sulphur and nitrogenous matter) such as coal and oil in power stations and furnaces or petrol and diesel in motor engines produce sulphur dioxide and nitrogen oxides.When these fuels are burnt, nitrogen and sulphur too are burnt and this produces different oxides of nitrogen and sulphur.