Across
- 4. Remains of a prehistoric organism
- 5. Absorbs most of the sun’s radiation.
- 6. Gas used to support life
- 8. A small rocky body orbiting the sun.
- 11. A continuous attack with bombs or missiles.
- 13. liquid in a small quantity on a surface.
- 16. Different living things
Down
- 1. An external supportive cover for animal
- 2. Burst of life over 530 mya
- 3. Large land masses joined together as one
- 7. A gradual and continuous loss
- 8. Gasses surrounding the earth
- 9. The planet we live on
- 10. Fly or move around in a circle.
- 12. The gathering of something
- 14. Unsuitable for living in.
- 15. A very, small thing like a fungus
