The correct answer would be D His work on gravity.
He developed the theory of universal gravity which we know as the inverse square law. He thought of 3 laws of motion and proved them by using mathematics. he investigated the planets movements.
A. Newly arriving European immigrants
The correct answer is A. All of these.
The United Farm Worker's was a labor union founded in 1962 with the help of several individuals, including Cesar Chavez. This union wanted better working condition and pay, especially for Hispanic citizens in California. This group worked together to make these conditions happen by conducting a grape strike in 1965. This form of peaceful protest made individuals realize how imperative these workers were to the success of the grape industry.
C, the religious problems did slow down the education in middle colonies
Collection of taxes on land to pay off war debts, which hurt farmers. The courts were forcing farmers who were in debt to sell off their land.