Explain one of Locke’s arguments for the existence of external, mind-independent things. How would Descartes respond to Locke’s argument?

Explain one of Locke’s arguments for the existence of external, mind-independent things.  How would Descartes respond to Locke’s argument?

Note: it should not be more than 150 words and two paragraph

it should have only one source which is the book attached down

I need it in less than 6 hours.