How far can sound travel?

Answer

Sounds are known to be able to move faster in liquids and solids because of their greater density. However they are slow in air moving at a speed of 340 metres per second. It also moves about 1,500 metres per second in seawater.
Q&A Related to "How far can sound travel?"
Sound cannot travel forever. E.g, When someone is talking and there are lots of people around can't here them. This is because when you speak it causes the air molecules in front
http://wiki.answers.com/Q/How+far+does+sound+trave...
Sound travels by vibrating its way through matter. Sound needs matter to exist, so there cannot be any sound in a vacuum, such as space.
http://www.ask.com/web-answers/Science/Physics/how...
Termite feeding area is expressed in two ways: by distance from the colony and by space around the colony. According to Exopest, an Australian exterminator, termites in Melbourne
http://www.ehow.com/facts_7245557_far-do-termites-...
The Krakatau explosion was heard 3,000 miles away. But men can't shout that loud. I'm sure they can manage a thousand feet, though, so that would about cover the Empire State Building
http://answers.yahoo.com/question/index?qid=201011...
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