Typically, DNA is created from RNA, and this is done by faithfully copying the sequence of base pairs, with the only change converting T to U. Hence, an RNA copy of a DNA sequence encodes the identical information, though it uses a slightly different set of 4 substances.
Soil organic carbon is part of the natural carbon cycle, and the worldâs soils holds around twice the amount of carbon that is found in the atmosphere and in vegetation. Organic material is manufactured by plants using carbon dioxide from the air and water.he amount of soil organic carbon present in soil can vary hugely according to soil and landscape types,an and c climate an change in the same paddock over time depending on climate and farming methods.
Up to 30% of the total carbon stored in soils is contributed by black carbon. Especially for tropical soils black carbon serves as a reservoir for nutrients. Experiments showed that soils without high amounts of black carbon are significantly less fertile than soils that contain black carbon.