The Atmosphere 5.0 / 5 based on 1 rating ? ChemistryThe earth and its atmosphereGCSEOCR Created by: FranFewster98Created on: 01-04-15 16:46 62431051798 Across 1. Which gas has reduced dramatically since the Earth was created? (6, 7) 4. As the Earth cooled down, most of this condensed and formed the oceans (5, 6) 7. The Earth is 21% what gas? (6) 8. 4th layer of the atmosphere (12) 9. 3rd layer of the atmosphere (10) Down 2. This gas is one of the gasses that produces acid rain (7, 7) 3. What process removed Carbon Dioxide from the atmosphere? (14) 5. 5th layer of the atmosphere (9) 6. The Earth is 78% what gas? (8) 10. 2nd layer of the atmosphere (12)
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