That's a hard one to answer but from all my reading it would seem there was one main reason. The Berbers were nomads so they never were able to be collectively together to form an army against invaders. Therefore, the Berbers were constantly being conquered by someone. Each time they had to learn new laws set out by the conquerors. When the Arabs came with their mighty army, they knew they couldn't fight so giving in was in an odd way a protection system of kinds.
Answer:
Earth formed around 4.54 billion years ago, approximately one-third the age of the universe, by accretion from the solar nebula. Volcanic outgassing probably created the primordial atmosphere and then the ocean, but the early atmosphere contained almost no oxygen.
Explanation:
Hope this helps :)
Several reasons actually. The most important one was its location. Thanks to it it enabeled the trade with African, European and Asian countries. Another thing is that it also was a good place to start a war on other countries.
<em>Answer:</em>
<em>fixed-interval </em>
<em>Explanation:</em>
<em>Fixed-interval schedule</em><em> is considered as one of the four distinct types of reinforcement schedule in the </em><em>operant conditioning theory </em><em>which was introduced by</em><em> B. F. Skinner.</em><em> A fixed-interval schedule is referred to as a reinforcement schedule whereby the very first or initial response is being rewarded once a 'specified time amount' has been passed or elapsed.</em>
<em>In this case, Colin's behavior is reinforced on a fixed-interval schedule.</em>
