ANSWERS

1. Nitrogen

2. Molten Iron and Nickel

3. Assam

4. Coal

5. Pacific

6. Igneous

7. 40,000km

8. Seismology

9. Silica

10. Moh?s scale

11. Lava

12. 20%

13. Synoptic Forecasting

14. Spring Tide

15. A River