Across
- 3. The lunges of the Earth
- 4. Protected areas for conservation of wildlife
- 8. A complex relationship between all the living and non-living things
- 10. The Nile,The Ganga,The Kaveri
Down
- 1. Mother Earth
- 2. They are made up hundreds to thousands of tiny creatures called polyps
- 5. Large floating mass of ice
- 6. A wild carnivorous mammal which is the largest member of the dog family
- 7. The natural engineers of river dams
- 9. The color of gold