3-Minute Flash Quiz
If you’re in a hurry but don’t want to miss the opportunity to put your general knowledge to the test, this quiz is for you. Can you answer all the questions in under five minutes?
“Petrichor” is a word invented by Australian scientists in 1964 to describe the smell of rain. The word actually pertains to the oils released by the earth before rainfall, which is a specific scent, and is detectable by human olfactory glands.