Across
- 3. change: it is human-caused or anthropogenic
- 8. Theory: proposed by Georges Lemaitre
- 9. galaxies: spherical or elongated galaxies
- 13. destructive plate margins
- 14. spiral galaxy: variation of the spiral galaxy
- 15. proposed the continental drift theory
- 17. emerged from rising molten rocks
- 18. tectonics theory: earth's surface is not a static and intact structure
- 19. Have the greatest contribution to global warming
- 21. storm: one of the natural sources of aerosols
- 22. galaxies: flat, disk-shaped galaxies
- 23. clusters: gravitationally bound clusters
- 24. fine liquid and solid particles
- 27. larger groups of galactic clusters
- 31. law: law that states galaxies recede at speeds proportional to their distances from the observer
- 33. single supercontinent
- 34. Milky Way's nearest neighboring spiral galaxy
- 37. galaxies: no distinct symmetry compared to spiral and elliptical galaxies
- 38. fission: H2O combine with another atom to form helium
- 39. imaginary path around the planets
Down
- 1. rainfall: can wash out pathogens
- 2. warming: increase in the average global temperature
- 4. plate: one of the tectonics plate
- 5. fault: conservative plate margins
- 6. constructive plate margins
- 7. collection of start
- 10. clearing of forests
- 11. tallest mountain on earth
- 12. birthplace of the stars
- 16. deepest trench
- 20. Way: example of spiral galaxy
- 25. large volumes of ocean water
- 26. effect: the ability to absorb and hold heat in the atmosphere
- 28. gases:gases that contributes to greenhouse effect
- 29. region in space where gravity is strong
- 30. group: galactic cluster
- 32. largest plate
- 35. matter: undetectable form of matter
- 36. dioxide: transparent to incoming solar radiation