In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

Q: Electric vehicles have _ tailpipe emissions.

A: zero
****
Q: Bull sharks are a 'requiem' species, reaching up to _ feet in length.

A: ten
****
Q: Homosexuals have _ times the rate of alcoholism, drug abuse and suicide as heterosexuals.

A:
three
****