What is a meme, What does it mean, and when was it created

Describe a trait that would black moth survive in sooty environment explain

If an atom has no charge, what can we say about the subatomic particles in the atom? a) there will be the same number of protons and neutrons, but a different number of electrons. b) there will be the same number of electrons and neutrons, but a different number of protons. c) there will be the same number of protons and electrons.

Why does yu tsun kill dr. albert at the end of borges’s “the garden of forking paths”?