Which of these colours has the shortest wavelength?
James Dyson revolutionised what product in the 1980s and 1990s?
Which of these is the art of growing miniature trees, or woody plants shaped as trees?
What does the Mohs scale measure?
The word "algebra" comes from which language?
A NICAD battery has a nickel anode and a cathode made of what?
In June 2010, 8 highly endangered monkeys (4 cottontop tamarins and 4 pygmy marmosets) were stolen from the Symbio Wildlife Park in which country?