Jason D Nemeth

Around 225 million years ago, Earth was home to the supercontinent Pangaea and the massive sea Panthalassa. In fact, Earth's land and water existed in several configurations before today's familiar continents and oceans formed. Readers of this book will get an accessible introduction to plate tectonics. This key scientific theory explains why Earth's landmasses have changed over time. The theory posits that the planet's crust is broken up into plates...

Earth's ice ages have had a major impact on both the spread of human beings and the contours of the land our species has occupied. This informative book discusses what Earth was like during the last ice age and how that glacial period fits into the cycle of ice ages throughout the planet's history. The book opens with a straight-forward explanation of the composition and movement of glaciers that will enhance reader comprehension.

"Describes the life and career of pro wrestler Randy Orton"--Provided by publisher.

"Describes first-hand accounts of the Civil War from those who lived through it"--Provided by publisher.