Atmosphere Review Crossword Puzzle

QUESTIONS LIST: troposphere: the atmospheric layer in which weather occurs, ozone: _ layer, protects the earth from most of the sun's uv rays, precipitation: the falling of water from clouds is known as, sun: the earth's energy comes primarily from this, exosphere: the furthest layer of the atmosphere, oxygen: the second most abundant element in the atmosphere, and essential to respiration, acid: _ rain can cause negative effects on the acidity of water, and erode buildings, evaporation: the change of water into its gaseous form.