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Across 2. source of energy in our atmosphere 3. only substance that can be solid,liquid, or gas 4. produced when electric plants release sulfer gases in the atmosphere (2 Words) 6. contains most of the mass of the atmosphere 9. made up of primarily concentrated Ozone 10. outermost layer of the atmosphere

Down 1. particles reach 1000C in this layer 2. upper limit of the stratosphere 5. layer above the stratosphere 6. upper limit of the troposphere 7. what are clouds made of (2 Words) 8. upper limit of the mesosphere