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