Adamantina is a type of city in Brazil. Imagine playing with toy cities where you can build roads, houses, and buildings. Adamantina is one of those toy cities that some real people live in. People who live in Adamantina speak Portuguese, which is a language kind of like Spanish but a little bit different.
In Adamantina, there are many things to see and do, just like in any other city. There are parks where you can play and run around, restaurants where you can eat yummy food, and stores where you can buy things you need. But Adamantina is special because it is located in a part of Brazil that is very dry and not very crowded with people. This means that the air is very clean, the sky is very clear, and you can see lots of stars at night.
People who live in Adamantina are called Adamantinenses. They love their city and take care of it by keeping it clean and safe for everyone. Just like how you take care of your toys and keep your room clean.
So, to sum it up, Adamantina is a small city in Brazil where people speak Portuguese, it is located in a dry and clear part of the country, and the people who live there take care of it and love it very much.