Tumbleweed Whenever you think of the Wild West of America, you think of cowboy movies and tumbleweed, perpetually tumbling around a desolate landscape. According to the American movies, tumbleweed is as American as apple pie.
3 Answers. , I am a serious student of all questions relating to the environment. Gasoline can be ignited by even a tiny spark at temperatures as low as fifty below zero, but it merely evaporates at temperatures up to about four hundred seventy five to five hundred F. At that temperature, it ignites spontaneously.
The flash point of a volatile liquid is the lowest temperature at which it can vaporise to form an ignitable mixture in air. Transportation regulations distinguish fuels as either flammable or combustible depending upon their flashpoint. 560.07 Â°R. and combustible fuels have a flashpoint above 38Â°C.