La biosfera es una parte importante de la Tierra porque es aquí donde es posible la vida. Todos los seres vivos en la Tierra viven en la biosfera. The biosphere is an important part of Earth because it's the place in which life is possible! All living creatures on Earth call the biosphere home. There's a great amount of biodiversity in the biosphere, but it's at risk because of human actions, such as deforestation and building. This book introduces...