The astrolabe was an instrument that had been used by the ancient Greeks to calculate the position of the sun and stars. Muslim astronomers improved the astrolabe around 850 A. D. With the use of the astrolabe, Muslim geographers were able to A. predict earthquakes and other natural disasters. B. calculate the size and circumference of the Earth. C. create maps of all of Africa and Asia. D. be the first people to sail around the world. ASAP!!!

Why did jefferson make the louisiana purchase?

2points which option best completes the diagram? humanitarian aid as a tool of foreign policy the united states provides humanitarian aid to rebuild after an earthquake. the country supports u.s. interests. o a. more educated citizens are more likely to create a democratic government o b. the citizens and government have a positive attitude toward the united states. o c. more prosperous citizens have money to spend. o d. the country's government discovers a new natural resource.

How does the balance of trade look different in the us today vs hot it looked in the 70's