Sign up for FlowVella
Sign up with FacebookAlready have an account? Sign in now
By registering you are agreeing to our
Terms of Service
Loading Flow
Downloading Image /
Downloading Image /
What is coal?
Coal is a combustible, sedimentary, organic rock, which is composed mainly of carbon, hydrogen and oxygen. Coal is a fossil fuel and is more plentiful than oil or gas.
Downloading Image /
Downloading Image /
Downloading Image /
Downloading Image /
Downloading Image /
Downloading Image /
Downloading Image /
FlowVella, Previously Known As Flowboard
© 2024 FlowVella
FlowVella
