1. Nitrogen forms four-fifths of the atmosphere.

2. Oxygen, hydrogen and nitrogen are all gases.

3. Liquid nitrogen boils at a very low temperature.

4. Most fertilizers contain nitrogen and phosphates.

5. Nitrogen is a gas without colour or smell.

6. Air is composed mainly of nitrogen and oxygen.

7. Air consists chiefly of nitrogen.

8. What is the percentage of nitrogen in air?

9. Many fertilizers contain nitrogen compounds.

10. Sulphur dioxide and nitrogen oxide combine to form acid rain.

11. Britain has agreed to cut emissions of nitrogen oxide from power stations.

12. Nitrogen is converted into nitrates in the soil which plants can then use.

13. The faeces contain nitrogen and it is that which fertilises the desert soil.

14. Nitrogen constitutes 78% of the earth's atmosphere.

15. Peas and beans put nitrogen into the soil.

16. Lettuce and spinach are particularly vulnerable to nitrogen uptake.

17. How much nitrogen is there in the air?

18. The solid nitrogen is also dissipating faster than expected.

19. Protein compounds contain approximately I 6 percent nitrogen. 151.

20. What are the prospects for nitrogen fixation in plants?

21. Four-fifths of the modern atmosphere consists of nitrogen gas.

22. Nucleic acids contain carbon, hydrogen, oxygen, nitrogen, and phosphorus.

23. Molecular nitrogen, a very stable molecule, is even better.

24. First[/nitrogen.html], the nitrogen oxides are toxic to animals.

25. Immobilization of nitrogen occurs in both types in both sites but phosphorus is immobilized only in the fern litter.

26. The atmosphere consist of more than 70 % of nitrogen.

27. Every tonne of coal contains, on average, 30 kilograms of nitrogen.

28. The 1,3,2,4-dithiadiazoles show a 1:1:1 triplet due to the spare electron being largely localised at the nitrogen atom remote from the ring substituent.

29. The first two chapters discuss a number of pollution incidents and the biological cycles of carbon nitrogen and sulphur.

30. The zinc sulphide is then transferred to a vessel through which passes an inert gas, such as nitrogen or carbon dioxide.

1. Nitrogen forms four-fifths of the atmosphere.

2. Oxygen, hydrogen and nitrogen are all gases.

3. Liquid nitrogen boils at a very low temperature.

4. Nitrogen is a gas without colour or smell.

5. What is the percentage of nitrogen in air?

6. The atmosphere consist of more than 70 % of nitrogen.

7. Every tonne of coal contains, on average, 30 kilograms of nitrogen.

31. As you surface, the pressure on your body fluids decreases and the nitrogen comes out of solution.

32. In the first experiment, dietary nitrogen was given in casein at four different protein values ranging from 5 to 16%.

33. Filtration At the present time there is considerable concern about concentrations of nitrogen compounds in water containing goldfish.

34. Global warming occurs when carbon dioxide and some other gases, such as methane and nitrogen oxides, accumulate in the atmosphere.

35. The new standards cut emissions of carbon monoxide, nitrogen oxides, gaseous hydrocarbons and particulate matter.

36. The fires produced 20,000 to 40,000 tonnes of sulphur dioxide as well as many thousands of tonnes of oxides of nitrogen.

37. Large explosions heat vast masses of the atmosphere to such high temperatures that nitrogen is partially burned to make toxic nitrogen oxides.

38. Pollutants such as nitrogen oxide, carbon monoxide and hydrocarbons have also been linked to hay fever, chest infection and childhood cancer.

39. An alternative source of nitrogen will be required to ensure a rapid buildup of bacteria and the complete breakdown of cellulose.

40. Apple trees require plenty of potash and nitrogen, especially if the area is grassed over.

41. Blood urea nitrogen, heart rate, and respiratory rate were not related to 2-year survival.

42. Global anthropogenic emission of oxides of nitrogen for 1980 were estimated at 75 million tonnes.

43. However, this statistic conceals that levels of nitrogen dioxide have changed little since 1983.

44. It was inflated with nitrogen gas within minutes and looked like a silver parachute.

45. On reflection, I think we made the nitrogen bands rather too wide.

46. After immersion in 40% glycerin solution at room temperature, they were placed on a copper stage and frozen with liquid nitrogen.

47. It is usually caused by the emission of particulates or nitrogen dioxide.

48. We can generalize from the samples and conclude that nitrogen levels have increased.

49. Nitrogen is rapidly lost but immediately available potassium, magnesium and calcium increase as input from the ash.

50. Scores of sewage plants along the Chesapeake's tributaries are disgorging nitrogen and phosphorus, natural products of biological sewage treatment.

51. These leguminous plants have the capacity to fix nitrogen from the atmosphere through their specialized root nodules.

52. The sulphur dioxide level in Belfast was 32 parts per billion while the nitrogen dioxide level was 48.

53. The Azollablue-green alga combination fixes atmospheric nitrogen and is widely used as fertilizer and as forage.

54. In addition,[http:///nitrogen.html] nitrogen from fertilisers washes into the bay from farms.

55. The gas is cleaned prior to burning and the sulphur dioxide and nitrogen dioxide, thought to contribute to acid rain, removed.

56. Does it complete the nitrogen cycle, ie. convert nitrate into nitrogen?

57. Both countries would also limit nitrogen oxide emissions through stricter controls on motor vehicles.

58. Reduction of nitrogen oxides from cars will need more expensive vehicles - or mean less use.

59. Nitrogen shortage normally shows out as small, sickly, pale green foliage.

60. Ash and biodegradable waste must be added regularly to achieve the right carbon nitrogen ratio.

61. The nitrogenous materials which have been oxidized aerobically to nitrate are then reduced anaerobically to nitrogen.

62. Nitrogen can take up to 20 years to pollute water and, therefore, is a very long term problem.

63. The southern California air basin is the only area in the country that still fails to meet the nitrogen dioxide standard.

64. Aerozine 50 was used as the fuel, with nitrogen tetroxide as the oxidizer.

65. Nitrogen use will be more problematic, but precision farming will enable farmers to keep track of field nutrient balances.

66. The soil was tested to make sure that it was free from ammonia or any other nitrogen compound.

67. In addition, it would consume liquid nitrogen for cooling purposes at approximately ￡20 per trip.

68. On Earth, nitrogen is an important ingredient of both storable rocket fuels and oxidizers.

69. Overfertilization by nitrogen may also make trees more palatable to insects.

70. In sunlight, VOCs can react in the lower atmosphere with nitrogen oxides to generate photochemical smog.

71. To avoid further damage to sensitive ecosystems, sulphur and nitrogen oxide emissions must be cut by 90 percent.

72. Silane, SiH4 is injected into the active nitrogen stream, and reacts with it to produce SiH.

73. This indicates that the inert gases were acquired by a different means from carbon and nitrogen.

74. The ceramics -- cables encased in a sheath of liquid nitrogen -- are being developed for power generation and other machinery applications.

75. If not, shortages of the other nutrients, such as nitrogen, could halt the growth benefits of more carbon dioxide.

76. Give a little extra nitrogen to blackcurrants and cooking apples; extra potash to gooseberries and red and white currants.

77. The crew compartment contains a nearly normal mixture of 80 % nitrogen and 20 % oxygen at sea-level pressure.

78. Unless farm fertilisation increases, atmospheric deposition of nitrogen, especially as nitrate, may well overtake deposition from land runoff.

79. Through heavy dressings of nitrogen these produce bulky crops for grazing, silage, and eventually for ploughing in.

80. In general coals contain carbon, hydrogen, oxygen, nitrogen and sulphur with various other trace elements.

81. This is activated by the concentrations of nitrogen and phosphorus from fertiliser run-off from agricultural practises.

82. These same nitrogen oxides, in high but apparently plausible concentrations, will defoliate plants.

83. Gaseous oxides formed from sulphur, nitrogen and other substances also have to be scrubbed out and neutralised.

84. Leivi is particularly worried by the high levels of phosphorous and nitrogen in the animals' droppings, which seep into groundwater.

84. is a sentence dictionary, on which you can find nice sentences for a large number of words.

85. An important factor in achieving high productivity in grassland is the availability of nitrogen to the plant roots.

86. Despite corn acreage increasing by ten percent last year, nitrogen fertilizer sales dropped by more than ten percent.

87. The specimens were frozen immediately in liquid nitrogen and subjected to autofluorescence microscopy.

88. Methylated bile acids were produced by reaction at room temperature for one hour and subsequently evaporated to dryness under nitrogen.

89. Sedimentrich runoff from logging, road building and real estate development has been filling the lake with nitrogen and phosphorous.

90. For example, below-ground resource allocation is driven by nitrogen or water availability in many forest ecosystem models.

91. Government monitoring stations measure levels of pollutants such as nitrogen oxides or low-level ozone but fail to publicise them widely.

92. Carbon atoms can form bonds not only with themselves but with the atoms of important atmospheric gases, oxygen and nitrogen.

93. Most traders, by the middle of this week, were still waiting for confirmation from maltsters on the accurate nitrogen tests.

94. Titan is unique in having a thick atmosphere made mostly of nitrogen, with some methane and possibly argon.

95. A model system relates energy consumption to emissions of sulphur and nitrogen oxide emissions.

96. Dried blood is another animal product from the abattoir, this time to supply nitrogen.

97. But close examination showed that species intolerant of acid conditions or high nitrogen levels were not reappearing.

98. Nitrogen oxide Forty percent of nitrogen oxide emissions in Britain come from vehicles.

99. Nitrogen mustards in suitable doses damage only cells and tissues which normally exhibit relatively high rates of proliferation and growth.

100. This test was used to ensure a 100% death rate of cells frozen in liquid nitrogen.

101. Morphological measurements and enzyme activities carried out on intestinal mucosa are another good method of assessing dietary nitrogen quality.

102. Like the rate of decrease in nitrogen, the rates of increase in fluorine and uranium depend strongly on local factors.

103. Apart from general operating conditions, it has set emission limits for sulphur dioxide, nitrogen dioxide and carbon monoxide.

104. Does it set back the filter bacteria, denied of the first stage of the nitrogen equation?

105. For matrix materials like methane, nitrogen, krypton and xenon, this is not too surprising.

106. The situation is exacerbated by unusually low levels of nitrogen oxides, which inhibit ozone destruction.

107. Nitrogen generation is negligible for both coals over the maturity range investigated.

108. The ability to operate at these temperatures is advantageous, because liquid nitrogen is cheap and the devices need less thermal insulation.

109. Nuclear explosions produce shock waves which can inject oxides of nitrogen into the stratosphere.

110. Organically farmed crops are not sprayed with any chemical pesticides and are not treated with nitrogen, potassium or phosphate fertilisers.

111. The residual gases including nitrogen, higher hydrocarbons carbon dioxide, etc. constitute about 2 percent.

112. This occurs in the upper atmosphere when neutrons produced by cosmic rays interact with nitrogen atoms.

113. This waste may be burned to make a mixture of carbon dioxide, water, and nitrogen.

114. The algae feeds on nitrogen and phosphates which come into the water from agriculture and sewage.

114. is a sentence dictionary, on which you can find nice sentences for a large number of words.

115. All the input data is then processed to produce the nitrogen application maps.

116. One molecule of ammonia contains one atom of nitrogen and three atoms of hydrogen.

117. So when you scuba dive, the amount of nitrogen dissolved in your body fluids increases.

118. There was a small explosion in the nitrogen cooling tanks.

119. Nitrogen oxide emissions from vehicles are rising every year because of the huge growth in the number of cars.

120. In order to decompose, all vegetable matter needs supplies of nitrogen.

121. Of those figures, Britain contributed 1.84 million tonnes of sulphur and an equal amount of nitrogen dioxide.

122. Nitrogen fixed in the form of biologically useful compounds is a limiting factor for photosynthesis.

123. Around half of the nitrogen in the burnt biomass may be released as nitrogen gas.

124. The very low abundances of volatiles and especially the low nitrogen abundance all pose special problems.

125. Bacteria then work on the nitrates converting them firstly to nitrous oxide and then to free nitrogen gas.

126. The company kicked off with a hefty dose of early nitrogen, which with hindsight was the right choice.

127. Lodging was less, despite more nitrogen fertiliser and a cheaper growth promoter programme.

128. Traffic now accounts for 51 percent of total nitrogen oxide emissions, compared to 31 percent in 1980.

129. The presence of nitrogen in all protein compounds distinguishes proteins from carbohydrates and lipids.

130. Limits may be set also by deficiencies of nitrogen and other key minerals in the soils.

131. Secondly,() waste can be used as fertiliser-the residue from such processing has a high nitrogen content.

132. The nitrogen oxides are almost as effective as dust at screening out sunlight.

133. Potash shortage is often an induced condition caused by too much nitrogen reducing the potash content to an unbalanced proportion.

134. Nitrogen dioxide levels in central London rose by 40 percent between 1979 and 1989.

135. The products of coal gasification include carbon monoxide, carbon dioxide, hydrogen, methane and nitrogen.

136. Catalysts are expected to cut nitrogen oxide emissions from cars to about 10 percent by 1989 levels by the year 2006.

137. The major Billingham-based production includes ammonia, nitric acid, urea and both straight nitrogen and compound fertilizers.

138. The coir is blended with a mix of nitrogen, phosphate and potassium fertilizers to form the new compost.

139. After a short time the oxygen and the nitrogen molecules will start to mix.

140. As the pressure increases, so does the amount of nitrogen forced into the bloodstream of a SCUBA diver.

141. At both operations, biopsies from the tumour and non-tumour liver tissue were collected and snap frozen in liquid nitrogen.

142. By spreading nitrates it is possible to obtain good yields of wheat or barley, which take nitrogen from the soil.

143. Armstrong also expressed his worry over the inconsistency between benzene-diazo-chloride and benzene-azo-benzene, both with two nitrogen atoms.

144. Elemental nitrogen is a very unreactive and inert material.

144. Wish you will love and make progress everyday!

145. Three types of N? chloroacetyl substituted nitrogen? containing benzoheterocycles were introduced into pyrimidine by the formation of thioether.

146. Many surgical complications and disease processes inhibit normal nitrogen anabolism.

147. Urea is commonly used as the source of nitrogen in foliage sprays.

148. The experiment on anisole dehumidification was carried out. And the results showed that the way of drying anisole by dry nitrogen is proved feasible.

149. AlN crystals were grown by modified sandwich sublimation method in nitrogen atmosphere.

150. The amide nitrogen of glutamine or asparagine functions more effectively than ammonia.

151. Since most textile wastes are deficient in nitrogen required for a balanced biological system.

152. The number of ice crystals generated from lg liquid Nitrogen was determined in a cloud chamber.

153. The nitrogen atom in ammonia, for example, vibrates 24 billion times a second.

154. Tetrazine ring is an energetic nitrogen hexa-heterocyclic group with nitrogen mass fraction of 68.3%, so it is a very effective structure unit in the design of high energetic, insensitive materials.

155. Aim: To synthesize new triazene compound. Methods: Nitrogen coupling reaction of the diazonium salt was applied. Results and Conclusion: Element analysis and IR data certified the product.

156. And that agro-animal combine of farmer household's cropland's nitrogen surplus ratio was 66.04%, being the obvious problem of high plough into but low yield.

157. And the sections of renal tissues, after HE-stained, were studied for the accumulation of CIC and the pathological changes. It was found that liposome-encapsulated nitrogen mustard can increase t...

158. The stabilized polyacrylonitrile fiber was prepared by the method of liquid - phase stabilization carbonized in nitrogen atmosphere.

159. Particularly suitable for corn, non-protein nitrogen for ruminant, feather powder, MBM . As well as bran for keeping-fresh, fish powder, cottonseed for detoxication.

160. There, in a process called denitrification, microbes convert the nitrogen into nitrous oxide (also called laughing gas) and an inert gas called dinitrogen.

161. The catalyst bed requires periodic regeneration with a stream of hydrogen diluted in hot nitrogen.

162. This paper relates a lab research job of preparation of PSNAMA terpolymer by terpolymerization of styrene cationic nitrogen compound with acrylamide and acrylic acid.

163. Among the blue - green algae are many species of nitrogen fixation.

164. The results indicated that all the 12 strains used in the experiment could effectively increase fresh weight and nitrogen content, while they decrease mimosine content in Leucaena leaves.

165. Nitrogen fertilizer applied at winter wheat season had the obvious after-effect and after-effect and mineralization of soil nitrogen should be fully considered in summer maize season fertilization.

166. In soilless culture, we should pay attention to proper adjust the ratio of nitrogen to potassium and the ratio of ammonia nitrogen to total nitrogen.

167. The content of nitrogen at lower stubble height was higher than that at higher stubble with in the belowground organs, opposite to the underground.

168. The proof of grafting was established by IR spectra, ninhydrin test, nitrogen estimation and other analytical methods.

169. The results showed that it was significant negative linear correlation between nitrogen rate and grain test weight, wt. per 1000 kernels, milling yield.

170. So, in this case, we see that our formal charge is negative on the nitrogen, in this case it's negative on oxygen.

171. It demonstrates that the impact on degumming of apocynum venetum is different with different nitrogen additive through using the half response equation.

172. It also summarizes basic principles on biological nitrogen and phosphorous asas some new significant views.

173. Objective To examine the cell viability and hemodynamic functions of the stented homograft valves preserved in liquid nitrogen.

174. Nitrogen as a plant nutrient is treated in a great number of publications.Sentencedict

175. Objective To study the occupational hazards characteristics in the process of big and small breathing loss on nitrogen sealed vault tank.

176. The experiments were carried out under solution and pot cultural conditions with Yangdao6. Effects of nitrogen on hull size, weight and plumpness were analysed.

177. Algae microorganisms in the water, over populate because the surplus nitrogen.

178. If we want to help the problem we can all do something by eating less meat. Eating meat is the dominant driver of the nitrogen cycle in Europe.

179. The results showed that starch as carbon source, and casein and soybean powder as nitrogen source, o methoxyphenol and vanillin of suitable concentration had good influence on laccase production.

180. Nitrogen narcosis has everything to do with the partial pressure of nitrogen and has no relationship with the partial pressure of oxygen.

181. The thick nitrogen atmosphere holds fog, mist, smoggy haze and rain clouds.

182. Depletion of soil nitrogen frequently leads to reduced concentrations of soluble amino and amides.

183. The nitrogen in the block Si3N4 can be determined accurately by inert gas fusion thermal conductivity method combined with 5-element bath.

184. The results showed that the nitrate reductase activity, net photosynthetic rate, chlorophyll contents and bleeding rate rose with increasing nitrogen levels.

185. In the two sides of nitrogen bridge, the degree of conjugation of one double bond with one formyl polyenic group is about equal to two aromatic cycles.

186. It was an adaptation of Wilson's cloud chamber, filled with nitrogen gas.

187. Nitrogen shortage during grain filling period decreased the sink metabolism and activity, which hindered the sucrose decomposition and starch synthesis,(http:///nitrogen.html) and finally resulted in small KW.

188. Experimental results show that, when increasing the nitrogen, the emission current density increases and the turn-on field decreases.

189. The utilization of nitrogen and energy sources by Thiobacillus ferrooxidans was investigated, and the removal of sulfur from coal pyrite exposed to the air for different time was studied.

190. The results showed that the super absorbent polymers added in ammonium bicarbonate could obviously promote the absorption of nitrogen, phosphorus oxide and potassium oxide by maize plants.

191. The process of naked cooling with nitrogen cycle refrigeration was proposed according to the producing requirement, followed by some points to note during the naked cooling process.

192. The stretchability is im proved with the reduction of nitrogen content in steel.

193. Applying potassium, boron and zinc could increase nitrogen, phosphorus, potassium, boron and zinc uptake of lily and large-headed atractylodes rhizome.

194. Objective To investigate the liquid nitrogen freezing method of infant skin strawberry hemangioma treatment and care.

195. The nitrogen components of amino acids are not channeled into well - defined metabolic sequences.

196. There is the potential of uptake of soil, inorganic nitrogen by the roots of the semi - parasite.

197. The nitrogen fertilizer losses in paddy field involve nitrification - denitrification, ammonia volatilization nitrate leaching and runoff.

198. Effects of nitrogen and phosphorus nutrition on gas exchange of maize (Zea mays) were studied under soil drought conditions.

199. Ammonification, nitrification and nitrogen assimilation in HA - TF are predominant.

200. So what we see is that the formal charge on the nitrogen is 0.

201. The inorganic ions and the amino acids were respectively added to the medium while yeast powder was used as base nitrogen source.

202. Heat production , energy and nitrogen balance were evaluated in respiration double chamber ( BAU KB - 1 ).

203. Application of nitrogenous fertilizer could markedly increase the plant part nitrogen content and the grain protein content.