carbon

Definition:
1. An abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds.
2. A piece of carbon paper.

Use 'carbon' in a sentence:

1. The two principal combustion products are water vapor and carbon dioxide.
2. Today, however, the potential problem is too much carbon dioxide.
3. The drawing is transferred onto the wood by means of carbon paper.
4. We all need to look for ways to reduce our carbon footprint.
5. By investing in efficient plant it could generate lots of valuable carbon credits to sell to wealthier, more wasteful nations.
6. Charcoal and diamond are allotropes of carbon.
7. Carbon dioxide is a necessary result of the oxidation of carbon compounds.
8. Burning fossil fuels uses oxygen and produces carbon dioxide.
9. Methane is often regarded as the second most important greenhouse gas after carbon dioxide.
10. Carbon, hydrogen and oxygen combine chemically to form carbohydrates and fats.
11. She is a carbon copy of her sister.
12. Pig iron may contain 4％ of carbon.
13. The proposed initiative would mandate a reduction of carbon dioxide of 40%.
14. Carbon dioxide is the largest contributor to the greenhouse effect.
15. In fact it is mostly carbon dioxide.
16. The emission of gases such as carbon dioxide should be stabilised at their present level.
17. Dissolved carbon dioxide makes the water more acidic.
18. Industrialized countries must reduce carbon dioxide emissions.
19. A spokesperson commented that levels of carbon dioxide were very high.
20. One theory about the existence of extraterrestrial life rests on the presence of carbon compounds in meteorites.
21. Humans take in oxygen and breathe out carbon dioxide.
22. Diamonds are pure carbon.
23. The proposed initiative would mandate a reduction of carbon dioxide of 40%
24. A methane molecule is composed of one carbon atom attached to four hydrogens.
25. CO is the formula for carbon monoxide.
26. Carbon steels exist in three stable crystalline phases.
27. Through this incision, the abdominal cavity is distended with carbon dioxide gas.
28. He inserted the paper and two carbons.
29. The limit for carbon monoxide is 4.5 per cent of the exhaust gas.
30. Both nicotine and carbon monoxide inhaled with cigarette smoking have been incriminated as causative factors.
31. Richer countries must do more to cut back carbon emissions.
32. You can liquefy the carbon dioxide to separate it from the other constituents.
33. It is important to increase city canopy cover and carbon storage.
34. Carbon is an element, while carbon dioxide is a compound.
35. Diamond is the crystalline form of the element carbon.
36. Carbon rubs off on your hands.
37. Organic compounds contain carbon in their molecules.
38. Theresa's first marriage was almost a carbon copy of her parents'.
39. Carbon dust and oil build up in large motors and cause them to short-circuit.
40. Under normal circumstances, these two gases react readily to produce carbon dioxide and water.
41. The emission of gases such as carbon dioxide should be stabilized at their present level.
42. The particles interfere with the formation of carbon-14 on earth.
43. Carbon has a valency of 4.
44. In its untreated state the carbon fibre material is rather like cloth.
45. The heavy traffic tinctures the air with carbon monoxide.
46. They forget about one of the key causes of carbon dioxide.
47. She's a carbon copy of her mother.
48. The amount of carbon dioxide released by human activities such as burning coal and oil is small in comparison.
49. Are the outlines of the carbon cycle really that familiar?
50. This may provide a quick and accurate way of monitoring the amount of carbon dioxide in the air.
51. Plants absorb carbon dioxide from the air and moisture from the soil.
52. The lime water has turned cloudy, therefore carbon dioxide has been produced during the experiment.
53. Reducing levels of carbon dioxide in the atmosphere is of critical importance.
54. In graphite sheets, carbon atoms bond together in rings.
55. Plants and trees filter carbon dioxide out of the air and produce oxygen.
56. Mars has an insubstantial atmosphere, consisting almost entirely of carbon dioxide.