Carbon Cycle/Energy Study Guide

Most of the energy consumed in the United States is for...

• residential electrical needs

• transportation

• commercial electrical needs

• industrial purposes

Which of the following is an example of non-renewable energy

• solar

• hydro-electric

• wind

• coal

Which "cycle" has most to do with the formation of Fossil Fuels such as coal and petroleum?

• Water cycle

• Carbon cycle

• Nitrogen Cycle

• Phosphorus cycle

Which of the following is a draw-back to hydro-electric power?

• Hydro-electric power releases more greenhouse gases than fossil fuels

• Hydro-electric power sources use harmfully sourced energy to move the turbines in the dam

• Hydro-electric dams can disrupt ecosystems by restricting the flow of a river causing some species of fish not to be able to return to spawning grounds

• None of the above

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Wind, moving water, sunlight, and heat from Earth's interior are sources of

• nonrenewable energy

• geothermal energy

• renewable energy

• ocean thermal energy

What would increase energy efficiency in the United States?

• Using public transportation and developing more efficient engines for vehicles

• Turning thermostats down in winter and up in summer

• Insulating homes and businesses

• All of the above

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In developing countries you are most likely to find biomass used

• to generate electricity

• for manufacturing

• as a source of hydropower

• for heating and cooking

Renewable energy is energy from sources that

• are not used up faster than they are formed

• humans can manufacture

• will take years to deplete

• were once living organisms

An example of something that is biodegradable is

• a plastic milk jug in a landfill

• a leaf in a compost pile

• a polystyrene burger container in a trash can

• all of the above

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Which of the following is a drawback to tidal power?

• There are limited locations that are suitable to generate tidal electricity

• It is expensive

• There are gaps between tides when no electricity is generated

• All of the above