There are about as many atoms of air in our lungs at any moment as there are breaths of air in the atmosphere of
A) the United States.
B) the whole world.
C) a large auditorium.
D) a large city.
E) none of these

Question

Quizplus · Accepted Answer

The correct answer is B) the whole world. This is based on a famous estimation by physicist Richard Feynman, illustrating the vast number of atoms in even small volumes and the surprising scale of comparisons when discussing atoms and molecules.

There Are About as Many Atoms of Air in Our