Don't spam if u spam again I'll contact a modarator
What is coal?
Attachments:
Answers
Answered by
1
Answer:
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. Coal contains the energy stored by plants that lived hundreds of millions of years ago in swampy
Similar questions