Sun-dried brick used to make some a American Indian homes

Adobe brick

Explanation:

Adobe brick, a sun-dried brick, was occasionally used. In fact, Native Americans had been using adobe for hundreds of years before the Spanish arrived in the Americas. Adobe was a very efficient building material. It was inexpensive and easy to

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answer: a federal government has final authority on interstate/inter provincial  and international affairs, a confederation is one where the central/national government or authority is governing body what does not have final say over the same matters. hopefully this and i will try again if you don't like this answer : )

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