When assessing energy resources, it is helpful to use a measure called EROI, which is ________.

When assessing energy resources, it is helpful to use a measure called EROI, which is ________.

a. energy returned minus energy invested
b. energy returned plus energy invested
c. amount of energy invested minus heat released into the environment
d. money invested in extraction and processing minus income from sales
e. energy returned divided by energy invested



Answer: e. energy returned divided by energy invested

Oil shale deposits ________.

Oil shale deposits ________.

a. can be pumped from underground reservoirs like conventional crude oil
b. are only a tiny fraction of the U.S. and Canadian potential oil reserves
c. contain organic kerogen which can be processed into petroleum
d. have been too expensive to extract and use as energy resources
e. are concentrated in the Middle East


Answer: c. contain organic kerogen which can be processed into petroleum

Natural gas is primarily composed of ________.

Natural gas is primarily composed of ________.

a. methane
b. oxygen
c. nitrite
d. nitrogen
e. sulfur dioxide



Answer: a. methane

Carbon sequestration ________.

Carbon sequestration ________.

a. has been used by U.S. electrical plants since 1955, converting carbon dioxide to limestone
b. involves capturing carbon emissions and then releasing them into the stratosphere
c.has proved to be more dangerous to the environment than releasing carbon emissions
d.involves converting carbon dioxide gas to a liquid form for storage in the ocean or underground
e. converts carbon from carbon dioxide emissions into smaller elements that do not contribute to global climate change



Answer: d.involves converting carbon dioxide gas to a liquid form for storage in the ocean or underground

U.S. oil production ________.

U.S. oil production ________.

a. peaked in 1970
b. is sufficient to meet national needs, thanks to major conservation efforts
c. will peak in 2100, requiring for the first time imports to meet growing demand
d. is now high enough for us to export nearly 50% of our oil
e. has to fit the quotas imposed by OPEC


Answer: a. peaked in 1970

The Organization of Petroleum Exporting Countries (OPEC) ________.

The Organization of Petroleum Exporting Countries (OPEC) ________.

a. functions to take maximum advantage of developed nations dependence on imported oil
b. strives to develop technologies to conserve nonrenewable energy resources
c. protects their national members' petroleum reserves for their own use
d. functions as a military alliance to protect developed nations' energy reserves
e. strives to ensure that developing nations get their fair share of fossil fuels



Answer: a. functions to take maximum advantage of developed nations dependence on imported oil