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What groovy item was invented by Englishman Edward Craven Walker in 1963?

A.	Leisure suit	B.	Lava lamp
C.	Eight-track tape deck	D.	Hot comb

Answer and Explanation

Answer:Lava lamp

Explanation:
Groovy, baby! Lava lamps, which were a fixture in every hip pad in the 1960s and 70s, featured a mixture of water and colored oil that created swirl patterns when heated by a light bulb.

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