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PUBH 6011 QUESTIONS AND ANSWERS
2026
Explain how energy influences human health - correct answer-
| | | | | | | |
Energy is essential for human health, well-being and comfort:
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greater energy is associated with better health
| | | | | | |
Example: infant mortality improvs up to levels of about 2,000 to
| | | | | | | | | |
3,000 kg of oil equivalent per person per year, but beyond that,
| | | | | | | | | | | |
rising energy use is not associated with further health
| | | | | | | | |
improvement
Figures 14.1 and 14.2 | | |
Fuel ladder - correct answer- With greater prosperity and
| | | | | | | |
technological development comes a shift toward cleaner, more
| | | | | | | |
efficiency, and more convenient energy sources, with the
| | | | | | | |
energy generated farther from the point of use.
| | | | | | | |
Define ethical considerations on what is meant by sustainable
| | | | | | | |
development - correct answer-
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Petroleum - correct answer- 35% in the US | | | | | | |
,2 | Page
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Minor role in electricity, large role in transportation, most dominant
| | | | | | | | |
energy source in America
| | | |
85% of it becomes fuel
| | | |
Accounts for about one third of fuel (gasoline, diesel fuel, and jet
| | | | | | | | | | |
fuel)
|
Natural Gas - correct answer- 29% | | | | |
Natural gas has been considered a promising bridge energy
| | | | | | | |
source because the combustion of methane, its main component,
| | | | | | | | |
generates about half the carbon dioxide per unit of energy
| | | | | | | | | |
released as the combustion of coal, and fewer other air pollutants.
| | | | | | | | | | |
However, even small amounts of leakage during natural gas | | | | | | | |
production, transport, and use may undermine the climate
| | | | | | | |
change advantage of this source
| | | | |
Hydraulic fracking is another concern | | | |
Coal - correct answer- 14%
| | | |
, 3 | Page
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25% of energy consumption and 40% of electricity generation
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worldwide
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Accounts for 40% of CO2 emissions and is therefore a major | | | | | | | | | |
contributor to climate change
| | | |
Produced through surface or underground mining- both | | | | | |
dangerous operations for workers, making miners at risk
| | | | | | | |
Many modern coal mines involve mountaintop removal and strip
| | | | | | | |
mining, processes that result in ecological damage, stress nearby
| | | | | | | | |
communities, increase the risk of mudslides, and contaminate
| | | | | | | |
water sources with waste emissions
| | | | |
Nuclear - correct answer- 9% | | | |
Carbon-free, but also potential dangers such as radiation | | | | | | |
exposure, storing the nuclear waste, potential for catastrophic
| | | | | | | |
accidents
|
Hydro - correct answer- 3% | | | |
Produced when flowing water strikes the blades of turbines that in | | | | | | | | | |
turn generate electricity
| | |
Does not involve combustion, however dams may disrupt river
| | | | | | | |
ecosystems by changing water flow and temperature, and
| | | | | | | |
causing sedimentation, reduced water quality, loss of wetlands,
| | | | | | | |
disruption of facilities, and greenhouse gas emissions
| | | | | | |
Other potential health hazards: population displacement,
| | | | |
infectious disease risk, and disaster risk
| | | | | |
| | | | | |
PUBH 6011 QUESTIONS AND ANSWERS
2026
Explain how energy influences human health - correct answer-
| | | | | | | |
Energy is essential for human health, well-being and comfort:
| | | | | | | | |
greater energy is associated with better health
| | | | | | |
Example: infant mortality improvs up to levels of about 2,000 to
| | | | | | | | | |
3,000 kg of oil equivalent per person per year, but beyond that,
| | | | | | | | | | | |
rising energy use is not associated with further health
| | | | | | | | |
improvement
Figures 14.1 and 14.2 | | |
Fuel ladder - correct answer- With greater prosperity and
| | | | | | | |
technological development comes a shift toward cleaner, more
| | | | | | | |
efficiency, and more convenient energy sources, with the
| | | | | | | |
energy generated farther from the point of use.
| | | | | | | |
Define ethical considerations on what is meant by sustainable
| | | | | | | |
development - correct answer-
| | | |
Petroleum - correct answer- 35% in the US | | | | | | |
,2 | Page
| | | | | |
Minor role in electricity, large role in transportation, most dominant
| | | | | | | | |
energy source in America
| | | |
85% of it becomes fuel
| | | |
Accounts for about one third of fuel (gasoline, diesel fuel, and jet
| | | | | | | | | | |
fuel)
|
Natural Gas - correct answer- 29% | | | | |
Natural gas has been considered a promising bridge energy
| | | | | | | |
source because the combustion of methane, its main component,
| | | | | | | | |
generates about half the carbon dioxide per unit of energy
| | | | | | | | | |
released as the combustion of coal, and fewer other air pollutants.
| | | | | | | | | | |
However, even small amounts of leakage during natural gas | | | | | | | |
production, transport, and use may undermine the climate
| | | | | | | |
change advantage of this source
| | | | |
Hydraulic fracking is another concern | | | |
Coal - correct answer- 14%
| | | |
, 3 | Page
| | | | | |
25% of energy consumption and 40% of electricity generation
| | | | | | | |
worldwide
|
Accounts for 40% of CO2 emissions and is therefore a major | | | | | | | | | |
contributor to climate change
| | | |
Produced through surface or underground mining- both | | | | | |
dangerous operations for workers, making miners at risk
| | | | | | | |
Many modern coal mines involve mountaintop removal and strip
| | | | | | | |
mining, processes that result in ecological damage, stress nearby
| | | | | | | | |
communities, increase the risk of mudslides, and contaminate
| | | | | | | |
water sources with waste emissions
| | | | |
Nuclear - correct answer- 9% | | | |
Carbon-free, but also potential dangers such as radiation | | | | | | |
exposure, storing the nuclear waste, potential for catastrophic
| | | | | | | |
accidents
|
Hydro - correct answer- 3% | | | |
Produced when flowing water strikes the blades of turbines that in | | | | | | | | | |
turn generate electricity
| | |
Does not involve combustion, however dams may disrupt river
| | | | | | | |
ecosystems by changing water flow and temperature, and
| | | | | | | |
causing sedimentation, reduced water quality, loss of wetlands,
| | | | | | | |
disruption of facilities, and greenhouse gas emissions
| | | | | | |
Other potential health hazards: population displacement,
| | | | |
infectious disease risk, and disaster risk
| | | | | |
