When the coal reaches its hardest and the darkest form then it is termed as anthracite.
The hardest among the coal is called as the anthracite. It has large amount of carbon atoms and it is also regarded as the best quality of coal that is being mined.
This is mostly prevalent in South Korea, North Korea, United states, United Nations, Canada etc. This is mainly used in the steel making process and is combined with many alloys for enhancing their property.
•there must be variation for the particular trait within a population.
•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).
•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good
i think that it is plants