OCNG 251 Exam 1 Questions and
Answers 100% Solved
What are some of the reasons we study the ocean? - It's interestingscientific curiosity!
70% of Earth covered in Earth
The ocean provides ~50% of the oxygen we breath comes from
phytoplankton from the ocean.
The ocean influences weather and cl...
Describe the scientific method. Why is it such an important concept? -
✔✔To discover underlying patterns in a natural world and use this
knowledge to make predictions about what will happen under a given set of
conditions.
What is the grid system we use to find where we are on Earth? -
✔✔latitude and longitude
How many oceans are there? - ✔✔5 Oceans: Pacific Ocean, Atlantic
Ocean, Indian Ocean, Southern Ocean, and the Arctic Ocean.
Which ocean is the biggest/shallowest? - ✔✔Biggest- Pacific
Smallest- Artic
What is the mean depth of the ocean? - ✔✔~3.8 km (2.36 mi)
Explorations of the Oceans- Polynesian Navigators - ✔✔used movements
of stars, seasonal winds, to navigate. Followed flights of birds. Noticed
changes in water when close to island.
Describe the layers of the Earth in terms that relate more to chemistry
(composition). - ✔✔Crust
- thin (4-60 km)
- low density minerals (silicates, Fe & Si)
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