Learning is more fun when you don’t realize you’re being taught. That is the philosophy behind our Science Trivia. On one hand you’re testing your knowledge base in a completely stress-free environment, and on the other you could walk away with a better understanding of the subjects discussed. Wait - you’re already a master of science? Well that pleases us also. TriviaQN is all about presenting trivia that can enjoyed by participants on all levels!
Portman collaborated (using her birth name, Natalie Hershlag) with Abigail A. Baird, who has a collaboration path (Gazzaniga, Michael S. -> Victor, Jonathan D.) leading to Joseph Gillis, who has an Erdős number of 1.
Answer: A perfect number.
You might also think of a perfect number as a number that is half the sum of all of its positive divisors, including itself! This definition is at least 2300 years old as it appears in Euclid's "Elements".
The CO2 levels have risen about 40% since the industrial revolution. As of March 2011, the CO2 level was about 0.04%.
Answer: Bering Sea