The following two questions are about race and ethnicity, which is tricky because we're an international site and there are large differences in how race is defined between different cultures.
For that reason, question 15 is just an easy way for us to see how many readers are non-white, since the majority of most English-speaking skeptics' sites are very white.
Question 16 is an attempt to see the specific breakdown, but the options listed are US-centric. Feel free to choose more than one or list a new race or ethnicity under "other."
NOTE: Anyone who writes "human" in the "other" box will be assumed white and clueless.