What made middle colonies different from new england and other colonies

The Middle Colonies and New England were different in that New England was largely Puritan, and, save for Rhode Island (which practiced a form of religious tolerance), the government was a kind of theocracy run by the Puritans. There was little religious tolerance, and family life was built around the Puritan church.

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the answer to your question is a. the salt plains

in 1811, he led an expedition, known as the george c. sibley expedition, to improve relations with the pawnee and kansa tribes, and also to locate the rumored jefferson's salt mountain

offline recommendation systems option b

because recommendation systems produce a list of two ways

1. through collaborative filtering

or

2. through content-based filtering