What organism or organic matter gave rise to coal?

 The  organism is bacterial 

Coal is known to be black solid combustible fossil fuel that is made up of carbon based material which is about 50% of its weight. The process of coal formation begins with the decomposition of plant matter by bacterial. The two main phases in coal formation are peatification and coalification, however, bacterial activity creates peat during peatification while increasing the temperature and pressure is refers to as coalification.

Coal is formed from plant vegetation. When this organic matter accumulates (layer after layer) in water-logged region, over time it forms peat (partly decomposed matter in acidic boggy ground). When the peat gets buried down under a column of sediments (over time), the high pressure and temperatures convert the peat to coal.

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation: