Listen and tick natural sources of pollution. 6

In the city, White Fang smells the dirty air. We need clean air to breathe. Air pollution can make animals and people sick. Some air pollution comes from nature, but other kinds of pollution come from human activity. Sources of air pollution are: salute. keep the low on the TV. Use a voice and a volume.

In the city, White Fang hears noise pollution too. We have noise pollution when a noise is too loud or lasts too long and it can cause ear damage, stress and poor concentration. But some noise pollution comes from nature and some comes from human activity.

Write. Then tick the sources of noise from human activities.

16 Listen and read. 9

Now White Fang is in California. Scott’s family doesn’t like him. And Collie, the house dog, hates White Fang, too.

It’s a wolf.

It can’t stay here.

But one night a thief enters the house. White Fang catches him.

They fight and fall together down the stairs.

White Fang looks dead.

Let’s call a vet. Immediately!

Scott’s family and Collie take care of White Fang.

Now they love him.

And Collie loves him too.

Collie and White Fang have six beautiful pups. They are half-dogs and half-wolves. They are special!