Describes the importance of agriculture and the production of food on farms, explains how the advent of farms has changed the landscape, and discusses the challenge involved in trying to adequately feed people around the world.
Library Binding
(Heinemann/Raintree, June 1, 1990)
An introduction to the problems confronting the Earth's atmosphere, fossil fuels and their effects, the effect of chemicals on the ozone layer, radioactivity, and other forms of pollution and what can be done to stop the destruction of the atmosphere