Answer:
Paper can be rejected because of flaws within the content of the paper
Step-by-step explanation:
A paper may be rejected because of the following reasons -
a) The paper is not having relevant sources.
b) There can be some plagiarism issue with the text of the paper
c) It may not be having a research write up
d) The topic of the paper doesn't match with the subject of the journal.
e) There can be issues with the hypothesis discussed with in the paper.
f) May be the result obtained do not bear any conscience.