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Across 1. term that describes the upper limit of troposphere 8. it is found in the stratosphere 9. this layer contains only a small amount of earth atmosphere that can be 1000c 11. the outermost layer of the atmosphere where helium and hydrogen gas are found 12. There is no concentrated ozone in this layer and its located above the stratosphere

Down 2. it has 5 layers 3. this layer is made up of primarily concentrated Ozone 4. this layer contains most of the mass of the atmosphere(including water vapor) 5. term that describes the upper limit of the stratosphere 6. what you breath in 7. term that describe the upper limit of the mesosphere 10. what is the only substance in our atmosphere that can exist as a solid, liquid, or gas