Unit #4- Energy Resources

What energy source does the United States mainly use for electricity?

• wind turbines

• hydroelectricity

• oil

• coal

What is one disadvantage of using nuclear energy?

• It produces radioactive waste.

• It is renewable.

• It produces less pollution than oil and coal.

• It produces electricity.

Which of the following activities can cause pollution? (page 226)

• mining fossil fuels (coal & oil)

• conserving water

• picking up trash

• planting trees

What is the greenhouse effect?

• The warming of a planet due to trapped radiation.
• The cooling of Earth due to air pollution.
• The heating of a solid, such as a rock.

What are fossil fuels?

• Solar, Wind, Hydro

• Coal, Solar, Natural Gas

• Coal, Oil, Natural Gas

Sustainability means ...

• saving everything that you use

• living today so that people will have their needs met in the future

• making less trash

Which variable of the Milankovitch Cycles is animated here?

• eccentricity

• obliquity

• precession

Tags

Milankovitch

One ADVANTAGE of using fossil fuels is that:

• They are better for the environment.

• They can produce extremely high amounts of energy.

• They contribute to the greenhouse effect.

• They will never run out.

What energy transformation occurs in a hydroelectric power plant?

• chemical to electrical

• electrical to mechanical

• chemical to mechanical

• mechanical to electrical

Natural resources that can be replaced quickly by nature.

• Energy Resources

• Renewable

• Nonrenewable

• Energy Conservation