Hydrosphere

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Across
  1. 2. of Salt Sediments, matter, rainwater
  2. 5. formed About 3.8 billion years ago
  3. 8. Evolution of species
Down
  1. 1. Salt in ocean over time
  2. 3. Able to evaporate
  3. 4. Hydrosphere 71% of Earth’s surface
  4. 6. Oceans 97% saltwater, 2% glaciers and ice sheets, 1% freshwater
  5. 7. of Earth’s water Asteroids, volcanoes, etc.