Yes, the capital of a state or country is that state/country's capital city. Santiago is Chile's capital city. For example, the capital of the United States is Washington D.C., which is a city.
It includes steep mountains like the Andes
For example, when a government imposes an import tariff, it adds to the cost of importing the specified goods or services The additional marginal cost added by the tariff discourages imports, thus affecting the balance of trade.
He was creative , intelligent he preferred solitude