what is the difference between latin language in south america and europe?

I'm Italian, so who better than me can explain it all, first of all Italian and Spanish languages both come from the old latin who was used in the ancient italy. Then it developed into italian for italians, spanish for spain and portuguese for portugal. If we focus on italian and spanish I can tell you that the two languages are pretty much alike, it's easy to understand they have a common root. I could let myself be understood by spanish people even though I don't speak spanish, for the simple fact that many word either are the same or sound very similar, but they are anyway two different languages. About south american latin languages : in brasil the will speak portuguese and in argentina spanish, and even though their languages where brought there from the colons they do have some differences from the european ones, but the differences are very small, let's say like american english and the british english.

I went to a beginner's Spanish language class in England. The content was Spanish like is spoken in Spain. The teacher was from Venezuela. She managed to teach European Spanish even though she knows South American Spanish. I visited Spain and liked it there. I feel in love with Central America and found Guatemala a lovely country to visit. I hope to visit South America so I should learn more Spanish. It is a shame that all Spanish courses in my home country are for Spanish used in Spain. I have a language pack detailing to me World Spanish. It shows the Spanish spoken in Central America and in South America.

I think fariz considers Italian and Spanish latin languages and wasn't saying they speak Latin.

I think you don't really know what Latin language is. It is the language that was spoken in the ancient Rome, centuries ago. Many european languages evolved from that language, ending up in the current european languages. In Spain the spoken language is Spanish, and in Italy is Italian. In Latinamerica, depending on the country they speak Latinamerican-Spanish (different from Spain's Spanish) or Portuguese. The difference is that those are all different languages

Most Latin Americas speak the language of the European country that colonizes their nation. Nearly two-thirds of the people in Latin America speak Spanish. It is the official language of Cuba, the Dominican Republic, Mexico, and most countries in Central and South America.