natural gas power

natural gas use

Like crude oil, natural gas must be processed before it can be used as a fuel. Some of the chemicals in unprocessed natural gas are poisonous to humans. Other chemicals, such as water, make the gas less useful as a fuel. Processing natural gas removes almost everything except the methane. Once the gas is processed, it is ready to be delivered and used. Natural gas is delivered to homes for uses such as cooking and heating. Like coal and oil, natural gas is also burned to generate heat for powering turbines. The spinning turbines turn generators, and the generators create electricity. Click image to the left or use the URL below. URL:

consequences of natural gas use

Natural gas burns much cleaner than other fossil fuels, meaning that it causes less air pollution. Natural gas also produces less carbon dioxide than other fossil fuels do for the same amount of energy, so its global warming effects are less (Figure 1.2). Unfortunately, drilling for natural gas can be environmentally destructive. One technique used is hydraulic fractur- ing, also called fracking, which increases the rate of recovery of natural gas. Fluids are pumped through a borehole to create fractures in the reservoir rock that contains the natural gas. Material is added to the fluid to prevent the fractures from closing. The damage comes primarily from chemicals in the fracturing fluids. Chemicals that have been found in the fluids may be carcinogens (cancer-causing), radioactive materials, or endocrine disruptors, which interrupt hormones in the bodies of humans and animals. The fluids may get into groundwater or may runoff into streams and other surface waters. As noted above, fracking may cause earthquakes. Click image to the left or use the URL below. URL:

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natural gas

Natural gas, often known simply as gas, is composed mostly of the hydrocarbon methane. The amount of natural gas being extracted and used in the Untied States is increasing rapidly.

natural gas formation

Natural gas forms under the same conditions that create oil. Organic material buried in the sediments harden to become a shale formation that is the source of the gas. Although natural gas forms at higher temperatures than crude oil, the two are often found together. The largest natural gas reserves in the United States are in the Appalachian Basin, North Dakota and Montana, Texas, and the Gulf of Mexico region (Figure 1.1). California also has natural gas, found mostly in the Central Valley. In the northern Sacramento Valley and the Sacramento Delta, a sediment-filled trough formed along a location where crust was pushed together (an ancient convergent margin). Gas production in the lower 48 United States.

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instructional diagrams

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questions

natural gas is mostly composed of hydrocarbon __.

a) propane

-->  b) methane

c) butane

d) benzene

fracking has increased rapidly in the united states in recent years.

-->  a) true

b) false

plant materials that are buried beneath so much sediment that they are altered by heat and pressure over millions of years can become __.

a) petroleum

b) natural gas

c) coal

-->  d) all of the above

from what source is natural gas extracted?

-->  a) shale

b) soil

c) granite

d) basalt

natural gas often forms with crude oil, but at a lower temperature.

a) true

-->  b) false

where in the united states are the large gas deposits?

a) surrounding the rocky mountains

b) the appalachian basin

c) gulf of mexico region

-->  d) all of the above

before natural gas can be used it must

a) be converted to gaseous form.

b) be diluted with water.

-->  c) have toxic chemicals removed.

d) all of the above.

earthquake activity has increased in locations where there is a fracking boom.

-->  a) true

b) false

fossil fuels burn much cleaner than natural gas.

-->  a) true

b) false

diagram questions

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