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To emphasize that Egyptians even those who are highly educated mistrust social media
Core beliefs are those you hold most dear. There are usually started from things such as environment, family, and friends. I hope this helps :-)
The second and last highlighted parts
the use of an insect is particularly significant because of all the things in this world, the insect is often seen as bothersome, disgusting, and easily squashed. While some people may see value in insects (for pollination, for example), most find them easy to ignore or horrific.