Discover the Depths: Test Your Scuba Skills Now! What should divers do to equalize pressure in their ears while descending underwater? Blow air out through the nose Hold their breath Swallow or yawn Ignore the discomfort None Which diving technique involves holding one's breath while swimming underwater at the surface? Snorkeling Scuba diving Free diving Cave diving None What is the primary purpose of a buoyancy control device (BCD) in scuba diving? Provide warmth Maintain neutral buoyancy Illuminate underwater Protect against marine life None What is the maximum depth limit for recreational scuba diving according to most training agencies? 30 meters (100 feet) 40 meters (130 feet) 50 meters (165 feet) 60 meters (200 feet) None Which piece of equipment allows divers to breathe underwater? Snorkel Regulator Mask Fins None Time's up Most Popular Most Popular