Plastics Clear Out - Norway

The video tutorial discusses the challenges of removing items from graphs, highlighting the difficulty of extracting everything without leaving small pieces behind. It then shifts to an exploration of the surroundings, with questions about what is being stood on and the presence of soil. The final section involves a cleaning process, revealing layers of soil that have accumulated over time.

How long has the substance been laying there according to the speaker?

What does the speaker imply about the layers of soil?