science treasury

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Across
  1. 2. mirrors used in rearview mirrors of cars
  2. 3. a reflecting surface
  3. 5. they are neutral
  4. 7. SI unit of power
  5. 10. a complete contraction and relaxation of the heart.
  6. 13. process of nutrition in plants
  7. 14. green color creates on metal due to corruption
  8. 15. effect of the presence of hydrogen in the reaction
Down
  1. 1. tissue does not have a nucleus in sieve cells
  2. 4. energy is released from the food absorbed by the body
  3. 6. it travels in a straight line
  4. 8. a colourless blood component containing 90%of water
  5. 9. turn red litmus blue
  6. 11. it rusts in the presence of oxygen and moisture
  7. 12. passing of light from one medium to another