CONTENTS IO Blue Planet Rivers A Rivers Source River Stages What Is a Lake Lakes of the World Changing Lakes Oceans I2 14 16 18 Ocean Waters 20 22 Tides Ocean Depths Pollution 24 26 28 30 Using Water Glossary For More Information Index 31 32
BLUE PLANET Viewed from space Earth looks mostly blue with scattered brown patches That is because almost three quarters of Earth's surface is covered in water Less than 1 percent of this water is freshwater that we can drink and use The rest is mostly salt water in the oceans and some is frozen at the North and South Poles Can you see why Earth people call is the blue
What Are Rivers, Lakes, and Oceans?
Rivers flow through our towns, lakes collect pools of fresh water, and the salty ocean covers nearly two-thirds of the Earth's surface.
About This Book
By: Louise Spilsbury
Illustrated by:
Published by: Rosen Publishing provided by Britannica
