Coal dust in the air is an explosive mixture, because the mixture of coal and air can burn much more rapidly than solid pieces of coal can (flour in the air is also explosive, or sawdust - any flammable substance in the form of dust becomes explosive if it is mixed into the air). The process of mining coal is messy, and creates a lot of dust. And any spark can set it off. No smoking in the coal mines!
People should use less of coal because coal mines have dangerous gases sulfur oxide and methane that causes mines to explode and the gases that can also poison humans. Plus burning coal can cause a disease that causes animals to swell up to 5 times their normal size.
mines
Coal mines are not known as a source of diamonds. Diamonds are erupted to earth through volcanic pipes.
it is found in coal mines and then they find more
no it might explode
Mines in which the coal was mined.
What is a shackled in coal mines
Coal mines are located underground
People should use less of coal because coal mines have dangerous gases sulfur oxide and methane that causes mines to explode and the gases that can also poison humans. Plus burning coal can cause a disease that causes animals to swell up to 5 times their normal size.
Children were removed from the coal mines.
The coal miner mines coal from the coal mine.
Open cast mines, coal mines, silver mines, land mines.
he mines coal from the earth.
he turned the coal white
In coal mines.
Coal mines, coal bins, coal hods, and anywhere coal is or was.
mines