Reading & Training Discovery Step 2: Natural Environments + Audio CD

Joanna BurgessOur planet is full of natural wonders: the forests, which are home to millions of species; the oceans, which cover three quarters of its surface; and the Polar regions and deserts, which have adapted to extreme climatic conditions. They have existed for thousands of years, but these environments and the plants and animals which live in them are changing. Discover why they are changing and what you can do to help.