Listener weekly quiz: August 6

Black Sabbath, led by the late Ozzy Osbourne (pictured), are among the "unholy trinity" of 1970s British heavy metal bands, comprising Led Zeppelin and which other band?

Can you score 10 out of 10?

Test your general knowledge with the Listener’s weekly quiz. Share your score with friends, family and colleagues, and find out who has the sharpest mind.