<< Previous Puzzle Monday, June 20, 2011 Newer Puzzle >>

Acid Rain

Acid rain happens when gases like Sulphur Dioxide or Nitrogen Oxide react with water vapour in the air to create an acidic vapour, which then precipitates as rain. Such gases can originate from man made pollution, or from volcanic eruption or lightning strikes. Acid rain is harmful to plants, animals and infrastructure.
See Also: http://en.wikipedia.org/wiki/Acid_rain

link to this puzzle

No comments:

Post a Comment