Earth science 11C review
Coal
A fossil fuel that forms underground from partially decomposed plant material
Natural gas
A gas with high methane content, found along with various fossil fuels and is used as a fuel.
What are the coal's two main uses?
Coal two main uses are used for a heat source and fuel.
Why are coal, petroleum, and natural gas called fossil fuels?
Coal, crude oil, and natural gas are all considered fossil fuels because they were formed from the fossilized, buried remains of plants and animals that lived millions of years ago.
How are petroleum and natural gas related?
How petroleum and natural gas are related is they are often found next to each other.
What chemical differences exist between natural petroleum and the known decomposition products of biological matter?
The chemical difference that exists between natural petroleum and the known decomposition products of biological matter is.
List three kinds of coal in order of increasing carbon content.
The three kinds of coal are lignite, bituminous, and anthracite.
Identify the three possible sources of petroleum and natural gas.
The three possible sources of petroleum and natural gas are phytoplankton, inorganic gases, and ab abiogenic. biogenetically non biogenetically or created by God
Lignite
a lump of soft, brownish-black coal that burns poorly because of its high water content
Anthracite
coal of a hard variety that contains relatively pure carbon and burns with little flame and smoke.
Petroleum
liquid fossil fuel; oil
In several paragraphs, evalutate the theories of fossil fuel formation and their reliance on certain presuppositions.
The Theories of fossil fuel formation and the presupposition. The Origin of Coal that Old-Earth geologists believe coal came from plants living and dying. Plants would be in a boggy environment between 100-300 million years ago. The trees bushes and ferns would fall in a swamp and that plant matter would build up and compress into fibrous matter called peat. The peat was covered with thick sediments that turned into rocks. The extra weight and heat come in the peat leaving mainly the organic carbon. Lignite formed first with more heat, pressure, and time the lignite become bituminous coal and the anthracite come. The Origin of Petroleum and Natural Gas, and come from fossilized marine plants called phytoplankton. These organisms died and settled to the sea bottom and mixed in with sediments. Heat and pressure were converted to organic matter into a waxy substance. With more metamorphism, this material chemically changed into petroleum and natural gases. The oil and gas moved through porous rocks or along cracks until it was trapped under impermeable rocks. Then Natural gas dissolved into oil or collected in spaces above the liquid petroleum deep underground. For nearly a century most people have accepted the fossil of petroleum and natural gas without a question.
Bituminous coal
The most common form of coal; produces a high amount of heat and is used extensively by electric power plants.
(True or False) It is possible that the petroleum and the natural gas are not really fossil fuels at all.
True: there are fossil fuels under ground.
