1) True or false: the ocean has a greater biodiversity and produces a greater amount of oxygen than all the rainforests of the world combined True False
2) Which marine plant species is responsible for the largest amount of oxygen produced in the world? Seaweed Sea grass Algal blooms Phytoplankton
3) True or false: the Great Barrier Reef, like the Great Wall of China, can be seen from the moon. True False: because it is underwater
4) What is the largest marine animal that ever lived? Carcharadon Megalodon Plesiosaur The blue whale The giant squid
5) Of all the eggs laid in the ocean, how many actually hatch? 1 in 1,000 1 in 10,000 1 in 100,000 1 in 1,000,000
6) What percentage of the global population depends on the ocean for its primary source of food? A quarter A third Half Three quarters
7) What can coral be used for? As bone grafts for healing human bones In medicine to prevent certain types of cancers As a tourist attraction As building material All of the above
8) True or false: in one year more oil is spilled from leaking automobiles and similar sources than was spilled in the Exxon-Valdez disaster of 1989. True False
9) If all the ice in the world melted, by how much would the oceans rise? 9m 25m 66m 98m
10) How much of the living space in the ocean has been explored by humans so far? Less than 10% 30% 40% 50% More than 75%
