2007-03-01 21:10:19 · 6 answers · asked by chezza 2 in Science & Mathematics ➔ Earth Sciences & Geology
Two reasons; the first, like the other, rational, responders have pointed out is the density of air traffic over Europe compared to Australia. The vapor trails are also influenced by the amount of moisture in the air. The atmosphere over Europe has a much higher level of moisture and is therefore more likely to allow the formation of a vapor trail.
2007-03-02 00:24:33 · answer #1 · answered by permh20 3 · 0⤊ 0⤋
Because there is a higher population density over Europe and therefore a lower need for airline travel over Australia.
2007-03-01 21:36:27 · answer #2 · answered by Robert G 5 · 0⤊ 0⤋
1. Population density is much lower. This is related to -
2. The air is much drier and vapour trails disappear much more quickly on average.
2007-03-01 21:58:31 · answer #3 · answered by Anonymous · 1⤊ 0⤋
See the overall area of Australia & the number of planes as compared to Euorope & the flights across. Also the air density,comparitive pollution levels & you'll get the answer.
2007-03-01 21:16:21 · answer #4 · answered by pinu 4 · 0⤊ 1⤋
There are far more planes flying over Europe at any given time than there are in the whole of the Southern Hemisphere at that same time...
First answer is good.
2007-03-01 21:20:17 · answer #5 · answered by sarch_uk 7 · 1⤊ 1⤋
Because THOSE AREN'T VAPOR TRAILS!!!
They are CHEMICALS THE GOVERNMENT AND MILITARY IS SPRAYING IN THE AIR!!!!!!!!!!!! WHAT IS IT? WHO KNOWS...THEY REFUSE TO TELL US IN THE STATES...AND I HAVE SEEN THEM ALL OVER EUROPE AND ASIA! Now before you dismiss this as some wacky conspiracy....look into it...you will quickly find bills signed by our past Presidents allowing them to do this...and I'm sure its no different in Europe...but i don't know if they will let you access that information.
LOOK IT UP, CHEM-TRAILS, CHEMTRAILS, CHEM TRAILS.
READ, LEARN...AND DEMAND IT STOP.
2007-03-01 21:18:56 · answer #6 · answered by Mr.Robot 5 · 0⤊ 3⤋