I. Fill in the blanks. Choose your answer from the lists. 1. These are threat to coral reefs. 2. They provide essential habitat for thousands of species. 3. They often called the lungs of the planet for their role in absorbing carbon dioxide, a greenhouse gas, and increasing local humidity. We need the rain forests to produce 4. and clean the atmosphere to help us 5. Mangroves provide essential 6. for thousands of species. Rainforests also stabilize 7._ house incredible amounts of plants and wildlife, and produce nourishing 8. all around the planet. There are ways to protect the reefs such as discouraging people from collecting 9. for ornamental purposes, illegal dynamite fishing, dumping of 10. into the sea. Corals Oxygen Pollution Rainforest Garbage Mangroves Climate Habitat Breathe Rainfall