Reading comprehension: Three Cheers for Trees

Cars and busses don't cause pollution.

Trees give us oxygen to breathe.

This sign means ...

You can ___________ your clothes by giving them to your younger cousin.

If we have a small carbon footprint, Earth will be healthier.

You should turn off the lights when you don't use them.

You can make your carbon footprint smaller when you ride your bike to school.

In summer trees keep us cool.

The pollution acts like a ___________ around Earth. It makes Earth hotter.

Eating meat is healthy for Earth.

When fossil fuels are burned they couse ____________ .

Coal, oil and natural gas are fossil ____________ .

A carbon footprint is how much you change ___________ by using energy.