What is the main type of acid found in acid rain?
Hydrochloric acid | Nitric acid | Sulphuric acid | Ethanoic acid
Which acid is contained within the sting of a stinging nettle?
Formic | Ethanoic | Hydrochloric | Nitric
Ascorbic acid is another name for which vitamin?
B12 | C | A | D
In Star Trek, what colour is Mr Spock's blood?
Purple | Red | Blue | Green
What colour was the owl and the pussycat's boat?
Pea green | Banana yellow | Carrot orange | Apple red
Is colour blindness more common in men or women?
Women | Men