What are "key resources", "key activities" in the examples? What is the difference?

Question

Startups

In the canvas of the business model, I met the following concepts:
1) Key resources.
2) Key activities.
But I did not find specific answers: what are the selection criteria, how do these 2 activities differ from each other?

Let me explain as far as I understand, using the example of a coffee shop:
Key resources: coffee machine, beans, premises
Key activities: coffee preparation (barista work)

In fact: everything is materially "resources", all services provided for business are "activities"?

Answer 1

The key ones are those on which the business model is built. So there are a million different activities, but if you just brew coffee, then 1c service does not affect the need to prepare and sell coffee

Answer 2

key exactly what it means in the dictionary. important necessary, without which it is impossible to do
what kind of key resources depends on the startup and the opinion of the one who talks about it