Um ciclo continuo onde a agua evapora, viaja para o ar e se torna parte de uma nuvem, cai para a terra como precipitacao.
I think it's the Pacific Ocean.
Because the volcanoes included in the ring of fire include those in Japan and the Philipines as well as those in the Western United States and Mexico. The only connector is the Pacific Ocean.
1) language, including the script - the Mayan language and the script (the only in the new world!) were shared among the city-states
2) science - calendar (and its religious interpretation) mathematics and astronomy
3) art and architecture - despite being separate states, the remains from different city-states are very similar and the architecture and the art form is shared.
Ownership, size, teaching status