Changes to the Environment and the Sun

People build __________ to grow crops and keep animals.

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People make __________ so cars and buses can move easily.

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People make __________ under mountains so cars or trucks can pass through.

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People build __________ over rivers so people and cars can cross.

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Edo: Cutting down too many trees can make animals lose their homes.
Fina: Cutting down trees is good because we don’t need forests.
Gina: Trees help to stop floods and keep the air clean.
Only two students are correct.

• Edo 

•  Fina  

• Gina

Cutting down too many trees is good for the environment.

• True
• False

Building factories does not affect the environment.

• True
• False

Pollution can harm the plants and animals in the environment.

• True
• False

Choose two objects that once alive.

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Choose two objects that never been alive.

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