Accounts for the different characteristics of animals, plants, and people by providing a simple explanation of the principles of inheritance and the influence of the environment upon living things
Carefully differentiating between renewable resources and those that cannot be replaced, the author points to the menace of instant trash, and suggests ways in which the reader can save and reuse materials
Discusses the history, people, and culture of this island commonwealth and the life-style and problems of the Puerto Ricans who have migrated to the mainland in search of jobs.
Hardcover
(Parents' Magazine Press, March 15, 1974)
Describes one idea of the streamlined, automated world of 2010 where beds are built into the floor, school is attended by vision phone, and groceries and dinner are ordered and delivered by computer.