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Marine Science 2 Semester 1 Course Review Exam Questions and Answers
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Marine Science 2 Semester 1 Course Review Exam
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Marine Science 2 Semester 1 CourseReview Exam
Explain the concept of a One World Ocean. - Answer -all of Earth's oceans are
interconnected
Explain how the Earth's Inner core, outer core, mantle and crust were formed. - Answer
-use explanation. Formea by acreation, particies clump together to form larger heavier
masses; Earth formed in layers
Explain density stratification - Answer -pulis heavier elements (iron & nickel) toward the
center of an object, lighter elements (magnesium, alluminum, silicon) to the outside
Compare the amount of water on Europa to the amount of water found on Earth's
ocean. - Answer -Europa has much more
Explain how Earth's ocean was formed. - Answer -water existed in the atmosphere and
eventually cooled and became rain ; water remained as a gas until Earth cooled below
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As the young Earth was forming by accretion, a slush of lighter materials silicon,
magnesium, aluminum, and oxygen-bonded compounds rose toward the surface to
form what layer of the Earth? - Answer -Crust
What process allows water vapor to escape Earth's outer layers to help form the ocean?
- Answer -outgassing
Explain how Earth's moon is formed. - Answer -formed from collision with another
planetary body, vapors came from inside the planet by outgassing
What evidence do we have that suggests that life on Earth almost certainly evolved in
the ocean? - Answer -blosynthesis
As green plants evolved into multicellular organisms, what major contribution did they
make to Earths changing environment? - Answer -photosynthesis which created oxygen
which allowed life
What is the average depth of the ocean? - Answer -12,081 ft
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