environmental aspects

Explains how acid rain forms; describes what it does to trees, lakes, stone, and people; and discusses solutions to the problem.

Discusses the environmental problems caused by the manufacture and disposal of plastic products and shows how the recycling of these products can reduce these threats.

Explains the environmental problems that result from the manufacture and disposal of everyday items made of metal and shows how the recycling of these objects can reduce these threats.

Discusses the problems caused by the manufacture and disposal of paper products, and proposes methods for recycling them to reduce such threats.

Discusses the problems caused by the manufacture and disposal of glass products, and proposes methods for recycling them to reduce such threats.

Examines the causes and effects of acid rain and discusses what can be done to prevent it.

Text and photographs discuss the uses of wood, how wood is processed, how wood trash can be recycled, and what can be done to protect this resource for the future.

Discusses the causes of acid rain and how it damages the environment, and suggests ways to prevent and reverse acid rain and its effects.

Discusses war and its effect on the environment, highlighting natural resources, geography, animals, and humans as victims.

Explains the nature and importance of the ozone layer, how it is most likely damaged, and what measures are being taken to protect it.