Physical World
What French name is given to a pinnacle of ice caused by intersecting crevasses on a glacier?
Serac - famous examples include "The Bottleneck" on K2, Kanchenjunga, the northeast face of Piz Roseg, the north face of the Dent d'Hérens, and the north face of Lyskamm.
Mountains, Volcanoes & Hills
physical-world
The disorder of excessive internal and external bleeding, haemophilia A is caused by a genetic deficiency of which factor in the blood clotting cascade?
Factor VIII [eight]
Biology | Diseases
physical-world
What term, taken from the name of a class of Greek deities, is used in biology to refer to the immature forms of certain insects, such as dragonflies and mayflies?
NYMPH
Physical World
According to NASA and the ESA it is the most reflective body in the solar system, which moon of Saturn, named after a giant that is supposed to be buried beneath Mount Etna, is almost completely covered by clean ice?
ENCELADUS
Space
physical-world
Beriberi is a deficiency of which specific vitamin?
Thiamine (B1)
physical-world
Born in Bologna in 1737, this physicist lends his name to many things including an electrical cell, an instrument which measures current, a type of lie detector, and a verb which in modern usage means to stir someone into action. Who was he?
Luigi GALVANI
Physics
Physical World
In organic chemistry, what is the name of the chemical reaction between a conjugated diene and a substituted alkene, commonly termed the dienophile, to form a substituted cyclohexene derivative? It is named for the German chemists who first described it in 1928.
DIELS–ALDER reaction
Chemistry
physical-world
The Ob, Yenisei and Lena rivers all flow into which of the world's five oceans?
Arctic Ocean
Rivers
Physical World
What is the official currency of Saudi Arabia
Riyal
Currencies
Physical World
Also called sawbill, the name of which diving duck derives in part from the Latin meaning 'goose'?
Merganser
Animals