Natural Resources unit 2 lesson 1

Most of the energy that people use come from the fossil fuels.

• true

• false

Humans need fresh, clean water to survive. Which of these statements is true about fresh water?

• An unlimited amount of freshwater is available on Earth.

• The global population is currently decreasing and people are using less fresh water.

• In some places on Earth, fresh water is being used up faster than it can be replaced.

Which of these is a positive consequence of using biomass as an energy resource?

• No burning is required

• More new machines are designed

• No waste is produced

• It is potentially renewable

Wind is an example of an energy source that is inexhaustible.

• true

• false

What is one disadvantage of using renewable energy resources, such as biomass, wind, or hydropower?

• These resources are not always available in all areas

• The equipment needed for these resources is difficult to manufacture.

• The science to develop these resources is too new.

• The use of these resources enhances the natural environment.

What are the advantages of using resources such as geothermal energy, solar energy, and wind energy?

• They come from energy resources that never run out (renewable energy).

• They increase the amount of greenhouse gasses.

• They can generate power by burning wastes.

• They produce large amounts of energy from burning fuels.

Why is petroleum considered to be a nonrewable resource?

• It constantly forms within Earth.

• It is difficult to obtain and transport.

• It requires a very long period of time to form.

• It releases harmful chemicals when burned.

Petroleum can be used to produce plastics and as a fuel for energy production.

• true

• false

Some resources can be either renewable or nonrewable depending on how they are used. Which statement describes a resource that could be both renewable and nonrewable?

• Petroleum is drilled from rock on the ocean floor.

• Trees are cut down to make wood products faster than new trees can grow.

• Solar energy is used to produce both heat and electricity.

• Wind turbines are constructed to use wind to make energy.

What is a natural resource?

• a situation that involves giving something up in return for gaining something else

• a resource that forms at a rate that is much slower than the rate at which the resource is consumed

• any natural material or energy source that is used by humans such as water, petroleum, minerals, and animals

• biomass that can be burned for heat or made into biofuel