Science Crossword Puzzle: By Kenji Bautista 7-Nationalism

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Across
  1. 2. Outer layer of the Sun's atmosphere
  2. 4. Point where Earth is at it's furthest from the Sun
  3. 7. One of the main component gases of the Sun
  4. 8. Greenhouse gases originating from air conditioners and refrigerators
  5. 10. Entire trip around the Sun by the Earth
  6. 13. Areas of the photosphere that is cooler than the rest
  7. 15. 50 km above the ground, aircraft pilots take advantage of it's properties
  8. 17. Giant column of hot gases extending towards the outer layer of the Sun's atmosphere
  9. 18. Snow that melted and was refrozen through layers of cold air
  10. 19. Point where the Moon closest to the Earth
  11. 20. eclipse Shadow created by the Moon when blocking the Sun's light
Down
  1. 1. Air masses originating from the ocean
  2. 3. breeze Wind that blows from the land to the sea
  3. 5. Days where day and night are of equal length
  4. 6. Transfer of water from the atmosphere to the ground
  5. 9. Layer of the atmosphere where meteoroids burn
  6. 11. Discharge of electrical energy between positive and negatively charged areas
  7. 12. Regular fluctuations in the Earth's ocean caused by gravitational forces
  8. 14. Large outer part of a shadow
  9. 16. Fraction of radiation reflected back to space