Blood Types. Distinct molecules called agglutinogens (a type of antigen) are attached to the surface of red blood cells. There are two different types of agglutinogens, type A and type B.
Fossil fuels are hydrocarbons, primarily coal, fuel oil or natural gas, formed from the remains of dead plants and animals. In common dialogue, the term fossil fuel also includes hydrocarbon-containing natural resources that are not derived from animal or plant sources.
The fossil fuels are energy rich carbon compounds and hycrocarbons such as coal, natural gas and petroleum. The technological advances in the 20th century made possible the extraction of fossil fuels from the earth commercially viable.y burning of fossil fuels, large amounts of carbon dioxide is released into the atmosphere. The carbon dioxide produced as a result of fossil fuel burning is the prime cause of global warming and climate change.