Purines and pyrimidines are nitrogen bases found in DNA and RNA .They are nitrogen containing heterocyclic compounds .Purines are large double ringed while pyrimidines are sma â¦ ll single ringed .
Frozen Methane is exactly what it sounds like. Frozen methane. Or in other words, it's methane locked in ice, which is called hydrates. It is also known as fire ice, because of it's ice-like appearance and ability to burn when lit with a match. Frozen Methane is formed when a large amount of methane is trapped within a crystal structure of water, forming a solid similar to ice.
A molecule of methane consists of one carbon atom covalently bonded to four hydrogen atoms around it in a symmetrical tetrahedral shape. Its chemical formula is therefore CH4. â¦ The angles between each of the bonds are 109o. Methane is a flammable gas, often released by bacteria while decomposing organic waste. It is lot more polluting than carbon dioxide, but a lot less abundant.