On a global scale, where is precipitation most common?
http://encarta.msn.com/encnet/RefPages/RefMedia.aspx?refid=461530746&vv=450
http://www.physicalgeography.net/fundamentals/8g.html
For ocean and continents
http://encarta.msn.com/encnet/RefPages/RefMedia.aspx?refid=461530746&vv=450
http://www.physicalgeography.net/fundamentals/8g.html
For ocean and continents