You will submit the Jupyter Notebooks as PDF.
In Google Colab a PDF can be exported under File Print and then it depends on your operating system.
For details on the submission of the exercises see here.
Easiest to explain with an example: For exercise 1 01_Classification.ipynb you will append your
group's name and the names of the members. So for group 42 and group members Richard Stallman and Linus Torvalds the file name will be 01_Classification_Group42_Stallman_Torvalds.pdf.
In case you have to submit more than the one PDF, put all files in one ZIP which in above example would be 01_Classification_Group42_Stallman_Torvalds.zip.