This quiz is strewn with issues. The Sahara is not the largest desert in the world, but rather, the largest hot desert in the world. The largest is Antarctica, as the definition is a region that gets little-to-no precipitation, and scientifically, Antarctica barely gets any precipitation. Change the answer or the clue. Also, for the final question, I typed in Victoria Falls and it accepted that for Niagara Falls. They are clearly 2 different things.