KBC 2021| which of these is a port city on the red Sea and was a hub of coffee trading to Europe and the Middle East in the 18th century? By Monishka Kapoor - October 22, 2021 KBC 2021, Find out the correct answer of the question- which of these is a port city on the red Sea and was a hub of coffee trading to Europe and the Middle East in the 18th century? •Arabica •Robusta •Mocha •Sana’a correct answer is mocha