The attack affected the american security policies because after the attack the american security system was looked down on and also it was taken care of by making the security more stricter.It impacted the view of Islam because it was done by a Muslim group so Islam was looked at like a religion which allowed killing and brutal acts toward humanity.
I hope this helps and answered the second question based on how I think it is because I am a Muslim myself.
The African kingdom that used seashells as it is form of currency is Mali Kingdom
On 28 August 1963, more than 200,000 demonstrators took part in the March on Washington for Jobs and Freedom in the nation's capital. The march was successful in pressuring the administration of John F. Kennedy to initiate a strong federal civil rights bill in Congress.
Technological advances increased profit and productivity
Not sure if this is an answer choice but it would be Signal
Let me know if this is the correct answer and if you have any other questions that need to be answered.