3 Written Questions

1. 7-30 miles above earth; contains ozone layer; contains jet stream (airplane flight); contains most of earth's pollutants (absorbs sun's energy); temperature increases the higher you go
2. 30-55 miles above earth; meteors burn up; less ozone; temperatures get colder; coldest layer
3. troposphere, stratosphere, mesosphere, ionosphere, thermosphere, exosphere

2 Multiple Choice Questions

1. overlaps with thermosphere, up to 300 miles above earth; contains charged particles called ions; between mesosphere and thermosphere; ions useful to bounce or reflect AM radio waves making long distance communication possible; contains auroras
   1. troposphere
   2. mesosphere
   3. ionosphere
   4. exosphere
2. 0-7 miles above earth; contains almost all weather; temperature decreases the higher you go
   1. stratosphere
   2. mesosphere
   3. ionosphere
   4. troposphere

2 True/False Questions

1. exosphere → 300 miles above earth; outermost layer of atmosphere; no clear boundary to outer space; very few particles; satellites travel safely

   True        False

2. thermosphere → 55-70 miles above earth; filters out sun's most harmful uv and x-rays, temperature up to 0 degrees F (gets warmer compared to previous layer), very low density

   True        False