Which one are you talking about
The amount of heat they are exposed to has a lot to do with the inferences and observations that they make on the density of the earth's core. The inner core is the most compact due to the fact that they have a lot of direct exposure to heat and the gravity of the earth pressung down on it. The inner core is less subjected to those conditions.
Some evidence that support that Brazil is a wealthy country is that it has peace and forsworn nuclear weapons. Brazil have as low Notional debts. It also stated that it has full employment and low inflation. Those are some reasons Brazil is a wealthy country.
