The first mask was made in 7000 BC. It was used primarily for rituals and ceremonies and where typically made of leather or wood. Keep in mind, these where the first masks that our modern generation has been able to find and preserve, masks could have been made earlier than this but detirriorated over time.
However, the first modern surgical masks where made in the early 1960s and replaced a more primitive method of cloth masks.
The answer is C!! Because, he largest desert is the Sahara desert and that's in Africa! And too, there aren't many deserts in Europe!:) hope this helps!:)
