Across
- 1. Rocks rich in silica and Magnesium
- 3. Sudden change
- 5. Earth'ssolidlayer
- 7. 71 % of Earth's surface
- 8. Blue Planet
- 9. all that surrounds us
Down
- 1. uppermost part of Lithosphere
- 2. Zone of contact between all three spheres
- 4. Envelope of air
- 6. Variety of life on Earth