The Earth's Atmosphere Crossword Puzzle
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QUESTIONS LIST:
- atmosphere: a layer of gases that surrounds the earth.
- troposphere: the lowest layer of earth's atmosphere where most weather phenomena occur.
- stratosphere: the second layer of earth's atmosphere, it contains the highest concentration of ozone gas.
- mesosphere: the middle and coldest layer, where the majority of meteors burn up upon entry.
- thermosphere: the second outermost and hottest layer, aurora borealis and aurora australis occur within this layer.
- exosphere: the outermost layer, where satellites orbit and transition into outer space.
- ozone: a layer of gas in the stratosphere that absorbs most of the sun's ultraviolet(uv) radiation.
- sun: it is the energy source of the earth.
- hottest: thermosphere is the _ layer.
- coldest: mesosphere is the _ layer.
