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.
hydrogen is flammable yes, but not very. because it is the least dense element it disperses very quickly meaning if it were to leak out of something it would disperse before it could ignite. It also burns very fast and has a higher ignition temperature than gasoline (gasoline is between 228 and 500, hydrogen is 550).