Ozone is a form of oxygen that combines _____ oxygen atoms into one molecule.

  One
  Two
  Three
  Four

This layer of the atmosphere is immediately above the troposphere and is characterized by increasing temperatures due to the concentration of ozone.

  Troposphere
  Stratosphere
  Hemisphere
  Atmosphere
  Ozonosphere

This is the third layer of the atmosphere characterized by decreasing temperatures.

  Troposphere
  Stratosphere
  Mesosphere
  Thermosphere
  Exosphere

The outer-most layer of the atmosphere.

  Atmosphere
  Exosphere
  Tropopause
  Stratosphere

Summer Solstice occurs on June 21 or 22 in the _____ hemisphere and on _____ 21 or 22 in the _____ hemisphere.

  Northern, January, Southern
  Southern, December, Northern
  Northern, June, Southern
  Southern, November, Northern

The northern hemisphere leans _____ degrees from the sun on Winter Solstice.

  23.5
  17.5
  27.5
  34.5

During the _____ _____ and the _____ _____ there is equal day and equal night worldwide and the sun is directly overhead at the Equator.

  Vernal Equinox, Autumnal Equinox
  Summer Solstice, Winter Solstice
  Trollstice, Magnoliest
  Vernal Solstice, Winter Equinox

_____ is a gas that comprises 21% of our atmosphere.

  Oxygen
  Nitrogen
  Water Vaopr
  Carbon Dioxide

What layer has the ozone layer in it?

  Troposphere
  Strosphere
  Ozonosphere
  Thermonucleosphere