How can I get rid of a light scratch caused by some grit left on a sponge?

I have a light scratch mark on the bonnet of my car from some grit left on a sponge - it's not deep. Can you recommend something to polish it out?
For minor paintwork scratches try Meguiar's Ultimate Compound Restorer:

Using an electric polishing buffer will do a better job than applying anything by hand as well, we'd recommend one of these two: or
Answered by Georgia Petrie

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