Across
- 5. relating to gravity
- 6. its center
- 8. to produce a substance by combining other substances
- 9. a secure position from which further progress may be made
- 11. to imagine or expect that something will happen in the
Down
- 1. radiation harmful rays from outside the Solar System
- 2. goods carried on a ship, aircraft, or motor vehicle
- 3. the maximum amount of something
- 4. scenario a situation when humans face threats of extinction
- 6. cosmos universe
- 7. the microorganisms in a particular environment
- 10. the force by which a planet or other body draws objects