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Our planet Earth is our home. It’s big and nice. There are a lot ____ forest, mountains, rivers, lakes, seas and oceans. The forests are full ____ animals.

The oceans are full of fishes. We live because we breathe air, drink water and eat food, growing ____ our planet. ____ hundreds of years nature has been serving people. They didn’t think ____ it. Industrial progress has caused certain ecological problem. Factories and plants put waste ____ the atmosphere and water. Air in big cities is awful because of transport. Forests are burnt ____ fires caused by careless people. A lot of animals and birds are killed or die ____ them.

Chemical wastes kill fish ____ the rivers, lakes, seas and oceans. Can we solve the problem ____ pollution? Yes, if we plant trees.

They clean air ____ our cities. We mustn’t make fires in the forests.

We must help animals and birds and not disturb wildlife.

Nature riches will not last forever. It’s our duty to do our best to protect the environment.