Explanation:
Las tres capas principales que conforman la estructura interna de la Tierra son la Corteza, el Manto y el Núcleo
The salad bowl concept suggests that the integration of the many different cultures of United States residents combine like a salad, as opposed to the more traditional notion of a cultural melting pot. New York City can be considered as being a "salad bowl".
it closed all the national parks and museums
