Oil and natural gas start off as dead organic matter, mostly algae and plankton, that settles to the bottom of a body of water along with the inorganic sediment that eventually becomes the rock. As the sediment is buried, the same heat and pressure that converts it into solid rock turns the organic material into hydrocarbons, which make up most of oil and natural gas. The oil and gas fill in pore spaces within the rock.
Sedimentary rocks are types of rock that are formed by the deposition of material at the Earth's surface and within bodies of water.
Natural gas- a mixture of gaseous hydrocarbons located under the surface of the earth, often near petroleum deposits; used as a fuel. Petroleum- liquid mixture of complex hydrocarbon compounds; used wisely as a fuel source. Oil and natural gas are formed from the remains of plants and animals.
Its limestone I'm pretty sure'
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Pressure from sediment turned decaying plankton at the bottom of the ocean into natural gas.
Claystone, and shale are sedimentary rocks formed from lithified deposits of clay.
A sedimentary rock formed from sand deposits is called a 'Sandstone' or generically a 'Psammite'.
A sedimentary rock that is sometimes formed by deposits of shell fragments is LIMESTONE!!
Sandstone.
Sandstone.
Sandstone!
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Sedimentary rock is the rock formed as a result of deposits from weathering and erosion. Sedimentary rock can be millions of years old.
Shale
claystone
shale
Sedimentary rocks. Example, sandstone.