Lakes (Mapping Earthforms)

Where is the world's deepest lake? What is a tarn? How were the Great Lakes formed? 'Mapping Earthforms' looks at the physical features that shape our landscape. The series explains how these features have developed, how they support and challenge living things today, and how they might change in the future. The series shows how the lives of people, plants, and animals are shaped by their environment, and how this environment is changing.