yes
All the countries accept Uruguayan passport since nobody has any issues with Uruguay. However, not all the countries have embassies or consulates in Uruguay; so you may need to obtain their visa (if you need one) by going to your neighbouring countries.
There's no registry in Uruguay for that. You can have with any age.
according to wikipedia, there are about 300-400 Muslims in Uruguay.
Any (plane).
Not in practice.
Brazil has no true deserts.
Not that any one has found or claimed, no.
Yes. There are venomous snakes in Uruguay including the lancehead snake (genus Bothrops) and some Spiders. Large carnivores such as the jaguar are now extinct in Uruguay.
That's up to her parents, if "going out" is just that, with no sexual interaction. If there's any type of sexual interaction, then she must be at the age of consent for her state, province or nation.
Yes Uruguay does have traditional dances. Some of the dances are the tengo and the pericon (national dance)
Less than 9% of Uruguay is forested and of this, only 20% is classed as primary forest.
Neanderthals are extinct, no interaction exists.