Q1) Approximately __?__ percent of the Earth's surface is covered by ocean.


Q2) The ocean surface area of the Earth is __?__.

Q3) Average oceanic salinity is around 35 parts per thousand (ppt) or __?__ percent

Q4) The study of oceans is called __?___.

Q5) The world is divided into five oceans: Pacific Ocean, Atlantic Ocean, Indian Ocean, Southern/Antartica Ocean and __?___.

Q6) The Pacific and Atlantic may be further subdivided by the equator into northerly and __?__ portions.

Q7) The ocean's average depth is __?__.

Q8) The deepest point in the ocean is the Marianas Trench located in the Pacific Ocean. How deep is it?

Q9) The oceans contain roughly __?__% of the Earth's water.

Q10) Life on Earth originated in the seas. True or False?