Difference between evidence and research in Korean
증거·연구

증거evidence
Evidence (증거) is proof that helps people believe or check that something is true. You can use this word for school, rules, accidents, or arguments. For example, a photo, a note, or a receipt can be evidence.

연구research
Research (연구) means careful study to learn more about something. In school, students and teachers do research for science, history, and other subjects. You can use this word when talking about reading, experiments, or finding new information.
The difference
연구 is the process of studying a topic carefully. It can collect proof, but it means the study, not the proof itself.