i'm not really sure but i don't think the fall of nubia/kush had anything to do with being taken over by the kindom of aksum.. i may be incorrect tho!
One of the advantages attributed to large population sizes
: Sports reporters fully believe that their own predictions about who will score the winning touchdown will actually come true most clearly demonstrates overconfidence.
: When someone feels too much of confidence or extensive confidence inside him/her then it lead to overconfidence. In the given example sports reporters have overconfidence about their prediction. They are absolutely sure that the final outcome will be what they predict only nothing less or nothing more. The overconfidence lead a person’s understanding of his own ability in that present situation, the person misjudged his capacity and get too much confident on it which lead to loss for him/her.
Overconfidence sometimes lead to rudeness and disrespect in person’s behaviour or sometimes the person has to be victim by these kind of problems just because of his misjudgement of his ability and his excessive amount of confidence. It cause when a person starts to believe that his power of senses is truly right and unchallengeable.
I'm think its environment, but I don't know for sure :/ sorry
Answer:
Science and technology have had a major impact on society, and their impact is growing. ... By making life easier, science has given man the chance to pursue societal concerns such as ethics, aesthetics, education, and justice; to create cultures; and to improve human conditions.