1.) How often have men descended to the Challenger Deep? a) Once b) Twice c) Three times d) Never
(The Challenger Deep is 36,000 feet deep along the Mariana Trench.)
2.) In 1933, the US tanker Ramapo encountered the highest wind wave ever measured reliably. How tall was this wave? a) 12 meters b) 34 meters c) 42 meters d) 54 meters
3.) Which of the following is NOT an example of human-made structure designed to stabilize the shoreline? a) Breakwater b) Jetty c) Tibia d) Pier
Answers can be found here.