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!!!

Thomas jefferson was the president of the united states. first second third fourth

What are some of the difficulties that the japanese face due to the islands' geography?

Two gymnastics teams are intense rivals. the first team has started recruiting new gymnasts from different cities and even foreign countries in an effort to build a stronger team. after learning this, the second team begins its own recruitment campaign to find even better gymnasts. over a period of months, each team recruits dozens of players, each time trying to find a better recruit than its rival's most recent addition. which idea from the cold war is most similar to this scenario?