Answer:
<em><u>C.) An Earth-Centric model of planetary motion published by Ptolemy </u></em>
Explanation:
Earth-centric model was developed by Greek astronomer Claudius Ptolemaeus in the 2nd century AD. <em>'</em><em>Almagaest'</em> was his main work and it was the culmination of centuries of work done in Astronomy by Babylonian, Hellenistic and Hellenic astronomers. His model involved 80 epicycles to explain the motion of Five planets, sun and moon.
According to Ptolemaic model, Earth is at the centre of the Universe. Moon, Sun, star and planets orbit around the Earth and some of the orbits have epicycles. It is Earth-centred model also known as geocentric model. This model have eccentric motion.
Shh dudu doesn’tksmmsmsmsmss
Answer:
2) Refusing to join the League of Nations
Explanation:
The best action that demonstrated the United States' effort to isolate itself from European conflicts after World War I is "Refusing to join the League of Nations."
This is evident in the fact that the United States Congress failed to pass the bill to join the League of Nations. This is based on the idea or some Isolationists' fear that it might make the United States drawn into International issues unnecessarily.
The answer is belief in Islam.
Arabs invaded the Sindh region in northern India during the 8th century. It was the Arab Umayyad Caliphate (an Islamic empire) which attempted to expand its frontiers to the East and conquer India and, therefore, started a series of campaigns against the Indian kingdoms in the East of the Indus river, but finally failed to conquer this region.
The Turkish were a nomad people from central Asia who converted to Islam in the 10th century. After that, under the leadership of Tugrul Beg of the Seljuk dynasty, they started to expand to the South-West and invaded the Khurasan region in Eastern Persia. They established the Seljuk Empire which expanded to the West into Anatolia, what today is modern Turkey.
43 presidents...... in total
