AP Environmental Science : Coal, Oil, and Natural Gas

Example Questions

Example Question #1 : Coal, Oil, And Natural Gas

At the current rate of consumption, available natural gas reserves are expected to last another:

50 years

100 years

25 years

75 years

600 years

75 years

Explanation:

Currently available natural gas reserves are expected to last another 75 years at the current rate of consumption.

Example Question #1 : Energy Sources And Production

Which type of coal is the cleanest and most efficient?

Charcoal

Bituminous coal

Anthracite

Sub-bituminous coal

Lignite

Anthracite

Explanation:

The least efficient and most abundant form of coal is lignite; after this comes bituminous coal, then, lastly, anthracite. Anthracite is a very hard form of coal with an extremely high carbon content. Anthracite also burns the cleanest of any coal, but unfortunately it is the least abundant and hardest to reach form of coal. Charcoal is not coal at all, but rather compressed and burned wood, consisting mainly of carbon and any remaining ash.

Example Question #14 : Energy Production And Usage

Which of the following is NOT a true advantage of utilizing coal as an energy source?

Coal produces relatively low sulphur emissions when burned.

Coal is very energy-dense and has a high energy yield.

Coal is abundant and confirmed reserves are predicted to last three hundred years.

Clean coal technology is a promising technology that reduces the environmental impact of modern coal plants.

Coal can be extracted and processed domestically, potentially reducing U.S. dependency on foreign oil.

Coal produces relatively low sulphur emissions when burned.

Explanation:

Clean coal technology is a promising solution to minimizing pollution from coal plants, and coal is one of the most abundant fossil fuels on the planet, with reserves potentially lasting up to three hundred years. Coal is also very energy-dense when compared to biomass or other renewable energy sources; however, the sulphur content of coal varies based on geographic location, and in areas that depend on locally sourced, sulphur-rich coal, the resulting emissions contribute heavily to acidic precipitation.

Example Question #1 : Fossil Fuels

Which of the following pairs of factors have placed the United States in a position of dependency on foreign oil?

Most U.S. oil reserves have been exhausted and most oil-rich Middle-Eastern nations are politically very stable and offer reliable trade agreements.

Superior fuel quality from Middle Eastern-sourced petroleum and low import tariffs.

The environmental and labor regulations for oil refining in the U.S. are more costly to firms than the duties and tariffs from importing oil from less regulated countries.

Trade agreements made with OPEC and a per capita demand that far outpaces much of the world.

Disproportionately high demand for fossil fuels and a low capacity to produce domestic petrol.