molly's crossword puzzle

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Across
  1. 4. relative humidity is a measure of the amount of water vapor that air is holding compared to the amount needed for saturation at a specific temperature.
  2. 5. move apart at divergent boundaries
  3. 7. the mid-ocean ridge is a vast underwater
  4. 9. Where the energy of an earthquake is
  5. 10. freezes at 0C
  6. 12. boundaries are plants that move
  7. 13. is one of the necessary things for photosynthesis
Down
  1. 1. drift is the hypothesis that continents have slowly moved to their current locations scientific law describes a pattern in nature.
  2. 2. are used to measure temperature.
  3. 3. of low pressure usually have cloudy weather
  4. 6. is the process that takes rocks inside the earth
  5. 8. is the process of liquid changing to a gas at the surface of the liquid
  6. 11. troposphere is the layer of the atmosphere nearest to the Earth's surface.