How did Ptolemys theories contribute to the development of astronomy?

A. He believed that the Earth was flat.

B. He believed that the moon’s rotation caused ocean tides.

C. he theorized that the Earth was moving closer to the sun.

D. He theorized that the Earth was the center of the universe.

D. He theorized that the Earth was the center of the universe.

Explanation: Ptolemy was an ancient Greek astronomer and a mathematician who believed that the earth was the center of the universe which led to the geocentric theory--coined from the greek word 'geo' which means earth. Albeit incorrect, this flawed view of the universe was acceptable for centuries until it was discredited. However, it is remarkable how using mathematics (especially geometry) and by tracking the stars he was able to track and predict the movement of the planets.

the passage of a strict fugitive slave law

the national congress's powers over the states were specific and definite: it had the sole power to negotiate treaties, declare war, and make peace. all powers not granted to congress were reserved for state governments. congress had no power to levy taxes, for example.