Guys, can you give me an example of language is human specific?

Adam posted in a thread about theoretical physics. in his post he refuted general relativity and cited a paper that was recently self-published by one person on her own personal website and had no references to other works in the field.which important question did adam not answer sufficiently when evaluating the cited paper?

Which of the following words provides a comparison to the word "equal"? uneven unbalanced uniform irregular submit answer ask for o type here to search

In achebe’s things fall apart, okonkwo finds his son nwoye’s signs of laziness "disquieting" because it reminds him of his wife his father his other son his younger self