The FireTtriangle. Most people have heard of the fire triangle: heat, fuel, and oxidizer. When these three components come together in the proper proportions, a fireâthe rapid chemical reaction of fuel with oxygen, resulting in the release of heat and light energyâis bound to occur.
Answer by Hank W. The average length of the northern hemisphere summer, calculated as the average time from the June solstice until the September equinox, is about 93 days and 15Â½ hours. The average length of the southern hemisphere summer, calculated as the average time from the December solstice until the March equinox, is about 89 days.
116 days. Winter always begins on December 21st. Based on today's date of August 27, 2010, there are exactly 116 days left until that date. Remember, to find out how long iâ¦t is until winter, always count the amount of days from the current date to December 21. 2 people found this useful.