A tecnological disaster would be if the GPS sat's fell out of earths orbit, The internet going out globaly, or a sucurity system failing. Its a Disaster that relates to tecnology. Just like a Ecenomical disaster is the economy :L hope this helped

They don't. It would actually be a fairly large disaster if either of them ever did.

because the earths plaits are pushed together to create stuff like volcanoes ,giant waves and earthquakes.gale force winds are created by space and

No, the word uncommon is an adjective, a word that describes a noun such as 'uncommon name' or 'uncommon reaction'.

Disaster reduction is disaster mitigation .