Changes in pressure cause wind to blow.
Você precisa mostrar-nos o que você quer dizer, como anotar as escolhas para que possamos ver o que você quer dizer. :)
A wave will travel only as long as it has energy to carry. The energy makes a wave travel and it will stop traveling as soon as the energy is dissipated.
Alexander spread Greek technology and ideas through his empire where people talked and visited from all areas to see what had been done.
