Solve this CrossWord Puzzle

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Across
  1. 3. A machine that performs tasks automatically.
  2. 5. The pumping organs in your body that is upto your fist.
  3. 8. The study of universe.
  4. 10. The gas that forms 78% of the atmospheric air.
  5. 13. An infectious diseases that spread very fast across a large area.
  6. 17. A place in space with a strong gravity that not even light can escape.
  7. 19. the tiny pores through which plants breathe.
  8. 20. The largest planet in the solar system.
Down
  1. 1. The fluid medium that transport materials in your body.
  2. 2. Part of the plant that absorbs water and nutrients from the soil.
  3. 4. hard protective covering on your fingers and toes.
  4. 6. The control centre of your body.
  5. 7. A vehicle used to travel in outer space.
  6. 8. simulation of human brain process by machine.
  7. 9. The kitchen of the plant.
  8. 11. Plants give out this during photosynthesis.
  9. 12. The centre of solar system.
  10. 14. A tiny particle that makes up all matter.
  11. 15. The structural and functional unit of life.
  12. 16. A substance used to kill germs.
  13. 18. Oman's first satellite launched in 2024.