WHAT ARE FOSSIL FUELS ? HOW IS LIFE OF A FOSSIL ESTIMATED?
Coal and petroleum are fossil fuels found in earth’s crust. They are non-renewable and exhaustible resources. They must be conserved to get their advantage in present and future.
WHAT ARE FOSSIL FUELS ? HOW IS LIFE OF A FOSSIL ESTIMATED?
Coal and petroleum are fossil fuels found in earth’s crust. They are non-renewable and exhaustible resources. They must be conserved to get their advantage in present and future.