Millions of years ago, huge coniferous (not to be confused with carnivorous, they're probably all extinct now) trees and massive ferns died and fell into tropical swamps and got covered by a lot of mud and sand and grit and silt and general dirt. The plants stored energy from the sun which they took in when they were alive (called photosynthesis), and was preserved when it turned into coal. Over more millions of years (phew, what a lot of millions of years!) the silt and stuff turned into rock, and all the plants (you know, trees and ferns we were talking about earlier) became coal.
Coal is a type of organic sedimentary rock formed from dead plants.
Wood is formed from plant matter like trees; coal is a type of rock that is formed under great pressure over millions of years.
Metamorphic rock
coal is a type of solid fossil fuel and is formed from the remains of plant life.
They are both organic sedimentary rocks.
Coal is a type of organic sedimentary rock formed from dead plants.
Biosedimentary Rock. Eg Coal.
this would be organic sedimentary
Wood is formed from plant matter like trees; coal is a type of rock that is formed under great pressure over millions of years.
Coal is an organic sedimentary rock that is considered a solid fossil fuel.
The fossil fuel, Coal and the gemstone, jet are formed from ancient plant materials. Jet is a type of lignite.
I'm not sure if this is true, but I've heard it is made out of the sedimentary rock, sandstone, and other things like coal.
Metamorphic rock
organic rock
Metamorphic rock is not formed directly from magma. Igneous rock is formed from the solidification of magma and lava.
Yes, anthracite coal is a type of coal that is considered a metamorphic rock, not a sedimentary rock. It forms from the metamorphism of bituminous coal at high pressures and temperatures.
coal