. "Discusses the nature, formation and environments of rivers and lakes. Suggested level: primary, intermediate."@en . "Explores the world of rivers and lakes, looking at how they have shaped the landscape and provided fresh water, a vital resource for human, animal, and plant life, and how communities both depend on them and can be devastated by them." . "Closer look at rivers & lakes"@en . "Rivers and lakes" . "Rivers and lakes"@en . . . . "Juvenile works" . . . "Juvenile works"@en . . . "Closer look at rivers and lakes"@en . . . . . . "Rivers & lakes" . . . . . .