Research by Novick examined whether the meaning of airplane changed for U. S. students around the time of the 2001 terrorist attacks. According to this research, Group of answer choices the number of connection weights for airplane decreased at the time of the attacks, but soon afterwards, the number of connection weights increased. for experts, the meaning of airplane changed significantly; for novices, the meaning remained stable. shortly after the attacks, airplane shifted from being a prototype to becoming an exemplar. airplane became a more prototypical example of a vehicle shortly after the attacks, but it was judged less prototypical about 4 months later.

fir trees are found in areas with cooler climates. fir trees have needles for leaves and remain green year-round.

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.

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