Illustrates four types of volcanoes, explains what causes eruptions and how lava enriches the soil. Includes an interesting description of the development of a volcano.
Investigates the causes and disastrous effects of drought, giving the history of some of the severest droughts on record in the United States and elsewhere.
Describes what causes forest fires and how they are extinguished. Shows the destruction wrought by fire as well as the beneficial effects on plant and animal life.
A graphic presentation of the causes and results of earthquakes, including research methods scientists employ as they investigate the origin, nature and control of this force.
The terror of tornadoes unfolds with this account of the most devastating natural phenomenon in the world. Includes several precautions as to what to do when a tornado is approaching and how to build a storm cellar.
