whats with those strands of spider webs?

Question

you know in the summer time, your outside, and then a long strand of web gets snagged on you or your car or something else. i see them all the time floating in the wind. in the movie "Napoleon Dynomite" Jon Heder has one on him when he and Pedro are jumping the bike ramp. Where do these webs come from???

Answer 1

Spiders will make a long strand of silk like this and then use it to float on the wind. Hatchling spiders do this to disperse from their hatching site.

Answer 2

well spiders spun these webs, they make some sort of solution in their bodies and then use this solution to make such webs, in these webs the flies and mosquitos get caught and hence become food of the spiders.
Good Day

Answer 3

This is the way some spiders use to travel.