Layer r contains a well-known index fossil that is 100 million years old. based on this information and the principle of superposition,

women in the united states

explanation:

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barrio is a spanish word meaning neighborhood. in spain, several latin american countries and the philippines, the term is also used officially to denote a division of a municipality while a ghetto is a part of a city in which members of a minority group live, typically as a result of social, legal, or economic pressure. the term may have originally been used in venice to describe the part of the city to which jews were restricted and segregated.

united kingdom

portugal

france

germany