The gases that come from humans that deplete ozone are many. CFC's are one of the most dangerous of them.
Because most actors are humans.
Humans are curious. Curiosity is behind most questions.
Humans.. mostly
in what country do most medical advances comefrom?
Most dogs come from Europe or Asia
Italy
Actually, both the main religion and the historical reasons vary from country to country.
Laos is the main country that gets effected by poverty
Most country singers come from either Texas or Tennessee.
Olive oil doesn't come from just one country, but most of it comes from the Mediterranean region.
the north