Recently, world's biggest flooded cave found in which of the following countries?
A. Mexico
B. USA
C. Japan
D. Canada
Answer:A
Recently, world's biggest flooded cave found in which of the following countries?
A. Mexico B. USA C. Japan D. Canada
Explanation: Recently, a group of divers has connected two underwater caverns in eastern Mexico to reveal what is believed to be the biggest flooded cave on the planet, a discovery that could help shed new light on the ancient Maya civilization.