The change from thinking the continents are stationary to understanding that the outer layer of the earth moves slowly nearly all of the time occurred primarily because a) we began to make global observations that required recognition that the continents and oceans had not always been in their current positions b) we improved our surveying instruments significantly we got space travel and could see the motions c) we had two world wars and learned a lot from them about the oceans that explained how continents moved

The correct answer is option A) we began to make global observations that required recognition that the continents and oceans had not always been in their current positions.

Explanation:

The knowledge of the continuous movement of the Earth is based on the work of the scientists who study the movement of the continents. This process is called "plate tectonics." Earthquakes and volcanic activity are the result of that process. Scientists have discovered that the surface of the Earth is cracked. They call these pieces "tectonic plates." Up to 20 tectonic plates cover the Earth. Sometimes they hit each other and sometimes they move away from each other. Because some continents are above two plates, the continents move when the plates do.

the arab empire adopted the muslim religion as their main belief. arabs would influence the people from the territories they invaded towards islam (the muslim belief).

nevertheless, throughout the history of the arab empire, rulers brought intellectual individuals from other religions to their centers of learning. these other foreigners included jews, christians, greeks, persians, and indians.   these resulted in the adoption of important knowledge developed by these cultures by the arabic empire. for example, the works of aristotle were translated from greek to arab and indian scientists brought the numerical concept of "zero" to the arabs.

nowadays, 93% of the arab population is muslim, which at the same time is subdivided in sects including the sunni, zaini, alawi, shia. the remaining 7% is composed mainly of christians.