Confused

I’m going to assume your asking about qualification levels.

Level 1 is equivalent to a grade 1-3 at gcse, level 2 is equivalent to a grade 4-9 at gcse, level 3 is equivalent to an A-level and level 4 is equivalent to the first year of a degree.

The higher the level the more difficult. Normally you need level 2 qualifications to move onto level 3 qualifications and level 3 qualifications to move onto level 4 etc.

Levels in regards to what?

Bath Water

Levels in regards to what?