Answer: Plagiarism
Step-by-step explanation:
Plagiarism is the act of using someone else's words, sentences, or ideas and passing them off as your own without giving proper credit to the original source. Plagiarism is a serious academic offense. However ,common knowledge does not need to be cited . Common knowledge includes facts that are known by a lot of people and can be found in many sources.
Plagiarising the ideas of others is obviously a big deal. Because that is stealing the hard work of others and misleading your peers by pretending it is yours.