Listening Part 3 is usually a discussion related to academic research (students discussing a project, tutors giving feedback etc).
Sometimes this language is the everyday language of studying, but sometimes it includes vocabulary related to university studies that you may not familiar with.
There are many examples in this Part 3 about the Laki Volcano.
You will find it useful to learn this language associated with different aspects of university study.
For example:
At university, you have to examine the evidence:
Bronze Members: see the full lesson here