All life on Earth needs water to survive, but what happens when there is no more clean water? Find out what water pollution is and how it affects humans, animals, and Earth. Included are tips on how to waste less water and other ways you can help save Earth.
Level 2 readers are aimed at children who are becoming more confident at reading on their own. Simple sentences and informative captions help readers understand new ideas, while key words increase readers' vocabulary.
