plastic
By fox123
@fox123 (285)
Philippines
3 responses
@ScottTheGR81 (76)
• United States
10 Feb 07
The plastic is petroleum based, the sun heats it up and in the same way that crayons melt in the sun when left outside, essentially it is the samething. Hope I could help.
1 person likes this
@vanities (11395)
• Davao, Philippines
12 Feb 07
the ultraviolet rays of the sun has suffecient energy to break some chemical bonds holding the giant plastic molecules together..