Human Impacts on the Environment

Energy sources that cannot be replenished once they are used are called _______ resources.

• renewable

• natural

• nonrenewable

• synthetic

Which energy source is renewable?

• oil

• wind

• coal

• natural gas

If people continue to use ______ at the current rate, then our nonrenewable energy sources could run out.

• fossil fuels

• wind energy

• biofuels

• geothermal energy

Tags

NGSS.MS-ESS3-4

A ____ is a large molecule made of many repeating units.

• monomer

• plastic

• fossil fuel

• polymer

This image represents a ____.

Tags

NGSS.MS-PS1-1

All synthetic products are made from _____.

• wood

• fossil fuels

• natural resources

• plastic

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NGSS.MS-PS1-3

True or False: All living things are made of polymers.

• True

• False

Which statement is true?

• All plastics are polymers.

• All polymers are plastics.

• All fossil fuels are polymers.

• All natural resources are polymers.

Which of the following is not made of polymers?

• fingernails

• eyelashes

• water

• apples

Tags

NGSS.MS-PS1-1

A plastic sinks in water, gives off an orange flame and softens in acetone. Which type of plastic is it?

• LDPE

• PS

• PET

• PVC

Tags

NGSS.MS-PS1-2