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

212. Trees that could have been used to eat your car's microscopic carbon dioxide emissions.

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

214. Chemically, chalk is largely calcium carbonate, he argues, and so should yield carbon dioxide if immersed in an acid.

215. Any tissue starved of oxygen increases its carbon dioxide production and the lungs compensate by deep and sighing respirations.

216. All of them ultimately start out as two very simple molecules, carbon dioxide and water.

217. First the carbon dioxide is filtered and allowed to accumulate in a container.

218. It estimates that in that time it cut its carbon dioxide emissions by more than 20 percent.

219. Washington continues to challenge the scientific claim that global warming is in part caused by emissions of carbon dioxide.

220. This reduction, however, is likely to be far outstripped by the increasing output of carbon dioxide.

221. The only way they add to carbon dioxide levels is through the power consumed in their manufacture.

222. Carbon dioxide also offers the flexibility to separate the hop components into bitter and flavour fractions.

223. These plants absorb the carbon dioxide released by the corals and so help to keep the water oxygenated.

224. Earth has only 0. 3 millibars of carbon dioxide and Mars an average of about 6 millibars.

225. Of those figures(Sentence dictionary), Britain contributed 1.84 million tonnes of sulphur and an equal amount of nitrogen dioxide.

226. The corresponding carbon dioxide emissions were down by a similar amount.

227. The best scheme presently available is to use high-temperature gas-phase electrolysis of carbon dioxide.

228. Catalysts convert carbon monoxide into carbon dioxide, which is less toxic, but equally polluting to the environment.

229. Also, the rain water has been a very weak acid because it links with carbon dioxide in the air.

230. Although anthropogenic emissions of sulphur dioxide account for only half of the total global emission, they tend to be very concentrated.

231. The rain is rich in benzene and hydrocarbons, which can be carcinogenic, together with sulphur dioxide and other pollutants.

232. A sink is a natural way of capturing carbon dioxide in the atmosphere and turning it back into solid carbon.

233. A carbon dioxide electrolysis unit requires both thermal and electrical power; indeed, it needs more thermal than electrical power.

234. The fog, apart from being a mutated organism, now contains carbon dioxide and various other impurities.

235. Carbon dioxide is the primary contributor to the greenhouse effect.

236. The hood was attached to a machine which measured the amount of oxygen breathed in and the carbon dioxide produced.

237. Global warming is largely due to the loading of the atmosphere with carbon dioxide.

238. The higher thermal efficiency resulting from the topping cycle reduces the amount of carbon dioxide produced per unit of power generated.

239. For two years in Bio2, carbon dioxide levels meandered up and down.

240. Even then, carbon dioxide emissions could still increase 65 percent by 2030.