Solar
Solar energy systems that rely on building design rather than technology are called this.
What is passive solar energy?
The turbine in the wind turbine can be found here.
What are the blades?
Large dams often reduce downstream fertility by trapping this material.
What is sediment?
Geothermal energy is derived from this source within the Earth.
What is heat from Earth’s interior?
Biomass includes organic materials such as wood, manure, and this category of fuels.
What are biofuels?
Photovoltaic cells generate electricity when photons dislodge these particles in silicon.
What are electrons?
Wind turbines convert kinetic energy into this form before electricity is produced.
What is mechanical energy?
The chemical reaction in a hydrogen fuel cell produces energy and this byproduct.
What is water?
Electricity is generated at geothermal power plants when this substance spins turbines.
What is steam?
Biomass is considered carbon-neutral because the carbon released was this.
What is recently removed from the atmosphere?
Active solar heating differs from passive solar heating because it requires this component.
What are pumps or mechanical systems?
Explain why wind energy does not consistently provide power.
What is intermittency due to variable wind speeds?
In tropical regions, reservoirs behind dams can increase human health risks by encouraging this vector.
What are mosquitoes?
This technology could be installed on a home for heating and cooling.
What are ground-source heat pumps?
Identify the main use of biomass in developing countries.
What is cooking and/or heating?
Identify the direction windows should face on a home in Atlanta to allow sunlight into the home in winter months.
What is South?
Identify one ecological trade-off associated with wind energy production.
What is bird and bat mortality.
The largest environmental issue of hydrogen fuel cells today occurs during this step.
What is hydrogen production using fossil fuels?
Identify one environmental concern associated with geothermal energy extraction.
What is groundwater depletion or release of hydrogen sulfide gas?
Identify one environmental drawback of corn-based ethanol production.
What is fertilizer and pesticide runoff or land-use change?
Concentrating solar thermal power generates electricity using the same basic mechanism as this energy source.
What is fossil fuel or nuclear power (steam-driven turbines)?
Despite minimal emissions during operation, wind energy still has environmental impacts related to this stage.
What is manufacturing, transportation, and/or disposal of turbines?
Although renewable, large hydroelectric dams can contribute to greenhouse gas emissions through this process.
What is decomposition of flooded vegetation or CO₂ released during construction?
Factor(s) that limit the widespread adoption of geothermal power stations.
What is the high cost and limited accessibility of heat globally?
Describe why ethanol is added to gasoline.
Ethanol contains oxygen allowing gasoline to burn more completely, reducing emissions.