there are three reasons first the wind the rain the magma and the erosions
Millions of years ago.
Volcanic activity millions of years ago
There were no cities millions of years ago.
millions and millions of years ago
it would be around 650 millions of years ago
Coal, gas and oil are three forms of non-renewable resources - which, laid down millions of years ago, can't be renewed.
Millions of years ago most of the land on the eart was covered by?
Nothing. While limestone existed millions of years ago there were no people to give it a name.
it takes millions of years for a diamond to form and very special conditions.
Coal are form when we burn trees. oil is form from the remains of animals and plant that lived millions of years ago in water environment.
how were the salt mines formed millions of years ago.
A salt is the product of a reaction between a base and an acid.