Plagiarism detected . Why don't you give the links of wikipedia pages for every topic , that you are copy pasting from there .Topics are just word for word copy paste from other source i.e a single source . Do write your own essay in your own wordings , it would be something new then . Copying first paragraphs of the topic and then first paragraphs of sub topic is not a good idea . So , stop it now .

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''Sufficient for us is Allah , and He is the best Disposer of affairs" Al-Quran