20 million years
The first power plants were installed by Edison in the 1880's, and were powered by coal, so that's the answer
Coal is very old, it is believed to have been formed from plant matter that became buried in the Carboniferous Era, many millions of years ago.
they have been around since about 1789 when there were stories of blood sucking monsters
I believe the Chinese culture has been around about 3,700 years.
Slavery has been around since the 1600's and is still going on.
yes there was you idiot there has been coal mining since 1700s you dick
Strip mining has long been associated with coal mines, has sometimes been used for copper and gold mines, and is currently in use for mining the Athabasca Tar Sands.
Coal should be around 360 and 286 million years old because most of the coal in the world was formed in the Carboniferous Period, which occured 360 and 280 million years ago.
how long has deforestation been around
As long as guns have been around.
The first power plants were installed by Edison in the 1880's, and were powered by coal, so that's the answer
Pennsylvania's most important mineral is coal. Second is oil.
how long has the london eye been around for
As long as So Random has been around.
They worked in coal mines and some children didn't servive in the mines because of all the fumes.
Coal has been forming in the Earth for millions of years, with some coal deposits dating back to over 300 million years. The process of coal formation involves the accumulation of plant material in swampy environments, which over time gets buried and compressed to form coal deposits.
234 years fool