Unit 7B Review- Natural Resources

Although hydroelectric power has many advantages, which of the following is a disadvantage of using this energy source?

• Water is a renewable resource therefore it will not run out.

• Once the hydroelectric power plant is build the energy is free and "clean".

• When building hydroelectric power plants, the rivers flow is disrupted as well as the surrounding environment.

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Greenhouse gases, such as carbon dioxide

• allows heat to escape into space which leads to global cooling and climate change.

• causes ozone depletion leading to increased cases of skin cancer

• trap heat energy in the atmosphere which can lead to global warming and climate change.

• creates smog leading to increased cases of breathing related problems such as asthma.

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Check all of the options that contribute to water pollution.

• fixing oil leaks in vehicles

• pouring old medicines down drains

• littering

• using fertilizers on gardens/lawns

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One way in which cities help prevent the waste of water supplies is by

• not allowing people to throw yard clippings in the drainage system.

• by requiring people to fix oil leaks on their vehicles

• not allowing people to fertilize their lawns during the summer months

• only allowing people to water their lawns on certain days and not during the middle of the day.

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Using the heat from the Earth's interior to generate electricity is which form of renewable energy?

• nuclear

• biomass

• geothermal

• hydroelectricity

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Greenhouse gasses can cause?

• global warming

• increased erosion

• global cooling

• the loss of topsoil

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_______ power is generated from the heat released when uranium atoms split in a process known as fission.

• solar

• biomass

• geothermal

• nuclear

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What is a major problem with the continued use of fossil fuels?

• alternative resources are cheaper than fossil fuels

• helps the environment

• limited supply and will eventually run out

• there is an endless supply

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Which source/s are considered nonrenewable? Choose all that apply

• coal

• wind

• nuclear

• fossil fuels

• hydroelectricity

When fossil fuels are burned and heat energy is released, where did the energy ORIGINALLY come from?

• oceans

• wind

• earth's core

• sun