Question 1

For the last 100 years, our primary energy source has been _______.

Accepted Answer

B

Question 2

One hundred units of coal energy are converted to electricity, which is then used to power an incandescent light bulb that produces 1.2 units of light energy. This results in a 1.2%_______ 	.

Accepted Answer

The energy end-use efficiency is calculated by dividing the useful energy output (1.2 units of light energy) by the total energy input (100 units of coal energy), resulting in 1.2%.

Question 3

Currently, fossil fuels meet_______of the global energy needs.

Accepted Answer

Fossil fuels currently meet approximately 79% of the global energy needs, as they remain the dominant source of energy worldwide.

Question 4

When coal is burned to generate electricity, 70% of the primary energy in the coal is transformed into unused heat. This means that the energy conversion efficiency from chemical to electrical energy is_______ 	.

Accepted Answer

The energy conversion efficiency is the percentage of primary energy that is converted into useful energy. Since 70% is lost as unused heat, 30% is converted into electrical energy.

Question 5

In the United States, oil production is_______oil consumption.

Accepted Answer

The answer of In the United States, oil production is_______oil...

Question 6

All of the following except_______would result in improved energy- use efficiency.

Accepted Answer

Buying more SUV motor vehicles would not improve energy-use efficiency as SUVs typically consume more fuel compared to smaller, more efficient vehicles.

Question 7

A measure of the useful energy produced divided by the amount of energy it takes to obtain it, is known as________.

Accepted Answer

The energy return on investment (EROI) is a metric used to assess the efficiency of energy production, calculated as the ratio of the amount of usable energy obtained from a resource to the amount of energy expended to obtain that energy.

Question 8

Electric power is measured in _______	.

Accepted Answer

Electric power is measured in kilowatt hours, which is a unit of energy representing the consumption of one kilowatt over one hour.

Question 9

Keeping energy prices artificially low_______.

Accepted Answer

Keeping energy prices artificially low can lead to increased consumption and waste, as there is less financial incentive to conserve energy, leading to rapid depletion of energy resources.

Question 10

Fossil fuels are best described as a(n)_______energy source.

Accepted Answer

Fossil fuels are considered a nonrenewable energy source because they take millions of years to form and are being depleted faster than they can be naturally replenished.

Question 11

Which of the following represents the greatest electric power?

Accepted Answer

Electric power is calculated as the product of potential (voltage) and current (P = VI). High potential and high current will result in the greatest power.

Question 12

Proven environmental impacts of the transmission of electricity have been associated with intermittent _______	.

Accepted Answer

The use of PCBs (polychlorinated biphenyls) in transformers has been associated with environmental impacts, as PCBs are toxic and can lead to contamination of soil and water.

Question 13

Energy consumption can be reduced by all of the following except _______.

Accepted Answer

The answer of Energy consumption can be reduced by all...

Question 14

Proved reserves of a nonrenewable energy source are _______.

Accepted Answer

Proved reserves refer to the quantities of a nonrenewable energy source that can be extracted with current technology and under current economic conditions.

Question 15

The Hudson River has been polluted with _______ from a facility that manufactures electrical transformers.

Accepted Answer

The Hudson River has been polluted with PCBs (polychlorinated biphenyls), which were used in the manufacturing of electrical transformers.

Question 16

Using high pressure liquids to extract oil from rocks such as oil shale is known as _______	.

Accepted Answer

Hydraulic fracturing, also known as fracking, involves using high-pressure liquids to create fractures in rock formations, allowing oil or gas to be extracted more easily.

Question 17

A/An _______is a device designed to remove particles and pollutant gases.

Accepted Answer

The answer of A/An _______is a device designed to remove...

Question 18

Mine tailings contain_______, which harms fish and other aquatic organisms.

Accepted Answer

Sulfide in mine tailings can lead to the formation of sulfuric acid when exposed to water and air, causing acid mine drainage that harms aquatic life.

Question 19

Many oil reserves are located far away from the urban areas requiring these reserves. A major oil spill associated with the transporting of oil was_______	.

Accepted Answer

The Exxon Valdez oil spill occurred in 1989 when the oil tanker struck a reef in Prince William Sound, Alaska, causing a major environmental disaster.

Question 20

A major concern with natural gas demand is_______ 	.

Accepted Answer

Transportation is a major concern with natural gas demand due to the challenges and costs associated with transporting it safely and efficiently over long distances.

Quiz 5: Nonrenewable Energy and Electricity, Renewable Energy and Energy Conservation, Urban Ecosystems, Waste Management, the Environment and Human Health, and the Environment and You

For the last 100 years, our primary energy source has been _______.

One hundred units of coal energy are converted to electricity, which is then used to power an incandescent light bulb that produces 1.2 units of light energy. This results in a 1.2%_______ .

Currently, fossil fuels meet_______of the global energy needs.

When coal is burned to generate electricity, 70% of the primary energy in the coal is transformed into unused heat. This means that the energy conversion efficiency from chemical to electrical energy is_______ .

In the United States, oil production is_______oil consumption.

All of the following except_______would result in improved energy- use efficiency.

A measure of the useful energy produced divided by the amount of energy it takes to obtain it, is known as________.

Electric power is measured in _______ .

Keeping energy prices artificially low_______.

Fossil fuels are best described as a(n) _______energy source.

Which of the following represents the greatest electric power?

Proven environmental impacts of the transmission of electricity have been associated with intermittent _______ .

Energy consumption can be reduced by all of the following except _______.

Proved reserves of a nonrenewable energy source are _______.

The Hudson River has been polluted with _______ from a facility that manufactures electrical transformers.

Using high pressure liquids to extract oil from rocks such as oil shale is known as _______ .

A/An _______is a device designed to remove particles and pollutant gases.

Mine tailings contain_______, which harms fish and other aquatic organisms.

Many oil reserves are located far away from the urban areas requiring these reserves. A major oil spill associated with the transporting of oil was_______ .

A major concern with natural gas demand is_______ .