what is coal? explain the type of coal?
Answers
Answered by
3
Coal is a combustible black or brownish-black sedimentary rock with a high amount of carbon and hydrocarbons. Coal is classified as a nonrenewable energy source because it takes millions of years to form. ... The resulting pressure and heat turned the plants into the substance we call coal.
Answered by
28
Explanation:
Coal is a combustible black or brownish-black sedimentary rock with a high amount of carbon and hydrocarbons. Coal is classified as a nonrenewable energy source because it takes millions of years to form. ... The resulting pressure and heat turned the plants into the substance we call coal.
mark as brilliant
30 thnks
Similar questions