Photochemical smog
the conditions under which the organism died and how it was buried
Coal is an organic sedimentary rock that is considered a solid fossil fuel.
Pollution is any foreign substance present in more concentration than safer limits. They are two types of pollutants 1. Primary pollutants 2. Secondary pollutants Primary pollutants are those which generated directly from Source . That type of pollution is generally termed as primary pollution. Ex : Carbondioxide , Sulphur dioxide etc in case of Air pollution Secondary pollutants are those which formed by the combination of more than two or more primary pollutants Ex : Ozone , Photo chemical smog in case of air pollution
Fossil fuels are a type of renewable resource.
Many rocks can contain fossil organisms. Generally speaking, sedimentary rocks are the rock type that contains the most fossil organisms. Coquina, a type of limestone, is formed nearly completely by the shells of marine organisms. And coal is a sedimentary rock composed of the remains of ancient swamp plants.
petrified
frozen fossil
skeletonized
It is called a mold fossil.
the conditions under which the organism died and how it was buried
the conditions under which the organism died and how it was buried
coal is a type of solid fossil fuel and is formed from the remains of plant life.
The fossil that is formed when an organism is buried in sediment and hardens into rock is called a cast fossil, in which the empty space serves as a mold.
fossil fuel
The fossil fuel, Coal and the gemstone, jet are formed from ancient plant materials. Jet is a type of lignite.
Coal is an organic sedimentary rock that is considered a solid fossil fuel.
cast