At the end of the survey

after pressing "Print polls"
questions and answers come in. I wish I could remove these elements k
which I have marked in the photo

You can remove some elements in the theme editor - extend your theme and modify printanswers_table.twig and printanswers_question.twig.

For some elements, you will need to copy the twig files from /themes/survey/parentThemeName/views/subviews/printanswers/questiontypes/ into /upload/themes/survey/childThemeName/views/subviews/printanswers/questiontypes/ and modify those files. (these files are not available in the theme editor)