Exam #1A Review Oceanography 100
UPDATED Exam Questions and CORRECT
Answers
Describe in detail at least 5 ways that the ocean affects your everyday life. - CORRECT
ANSWER - It gives us food, transportation, minerals, weather, and recreation.
Explain how a star initially forms and then "ignites".
How do the planets form around the star? What
is the main difference between the two? - CORRECT ANSWER - Clumps of helium create
the nebula and this is where the star is born.
Nuclear fusion converts H into HE and is what powers the star
The starts give off light an heat. The planets are formed from Helium, carbo, silicone, and Iron
Explain how nuclear fusion has influenced and continues to influence life on our planet. -
CORRECT ANSWER - E=mc2, "Would be no liquid water, heat is essential for ocean
function.
What are the main parts of an atom? How does each part affect an atom's physical
characteristics? - CORRECT ANSWER - Protons, Neutrons, Electrons
Affects it if has 8 neutrons its radioactive
Why do the inner planets appear to be so different from the outer planets? What causes these
differences? - CORRECT ANSWER - Inner planets are hard, have water, rocky, close to
the sun, and have a higher melting point
Outer planets (Gas planets) farther from the sun and have no oceans
, Where do most scientists believe our moon came from? How did this occur and what major ways
has this event potentially influenced life in the oceans? - CORRECT ANSWER -
"Protoplanet smacked earth and vaporized earths material and was caught by gravity forming the
moon
Gravitational force from the moon generates the oceans tides
Why does our moon appear to have so many craters while the Earth does not? - CORRECT
ANSWER - moon has much less erosion than earth (moons density is lower)
What are the likely source(s) of water that contributed to our ocean?
Explain how this occurred and
how it is tied to Earth's formation. - CORRECT ANSWER - When the crater hit the earth,
massive amounts of steam and clouds resulted in precipitation.
How are elements heavier than iron formed?
What does this imply concerning past events in our
region of the universe? - CORRECT ANSWER - Heavier elements are formed during
supernova of a star.
They release molten dense elements
What will likely happen to our ocean (and planet) in about another 5 billion years? Explain why.
- CORRECT ANSWER - The sun will finally swell into a red giant and the earth will no
longer be in the habitable zone meaning that it will be way to hot and the lakes, oceans, and
rivers will boil away and evaporate
What are the main differences between oceanic crust and continental crust? - CORRECT
ANSWER - oceanic crust
UPDATED Exam Questions and CORRECT
Answers
Describe in detail at least 5 ways that the ocean affects your everyday life. - CORRECT
ANSWER - It gives us food, transportation, minerals, weather, and recreation.
Explain how a star initially forms and then "ignites".
How do the planets form around the star? What
is the main difference between the two? - CORRECT ANSWER - Clumps of helium create
the nebula and this is where the star is born.
Nuclear fusion converts H into HE and is what powers the star
The starts give off light an heat. The planets are formed from Helium, carbo, silicone, and Iron
Explain how nuclear fusion has influenced and continues to influence life on our planet. -
CORRECT ANSWER - E=mc2, "Would be no liquid water, heat is essential for ocean
function.
What are the main parts of an atom? How does each part affect an atom's physical
characteristics? - CORRECT ANSWER - Protons, Neutrons, Electrons
Affects it if has 8 neutrons its radioactive
Why do the inner planets appear to be so different from the outer planets? What causes these
differences? - CORRECT ANSWER - Inner planets are hard, have water, rocky, close to
the sun, and have a higher melting point
Outer planets (Gas planets) farther from the sun and have no oceans
, Where do most scientists believe our moon came from? How did this occur and what major ways
has this event potentially influenced life in the oceans? - CORRECT ANSWER -
"Protoplanet smacked earth and vaporized earths material and was caught by gravity forming the
moon
Gravitational force from the moon generates the oceans tides
Why does our moon appear to have so many craters while the Earth does not? - CORRECT
ANSWER - moon has much less erosion than earth (moons density is lower)
What are the likely source(s) of water that contributed to our ocean?
Explain how this occurred and
how it is tied to Earth's formation. - CORRECT ANSWER - When the crater hit the earth,
massive amounts of steam and clouds resulted in precipitation.
How are elements heavier than iron formed?
What does this imply concerning past events in our
region of the universe? - CORRECT ANSWER - Heavier elements are formed during
supernova of a star.
They release molten dense elements
What will likely happen to our ocean (and planet) in about another 5 billion years? Explain why.
- CORRECT ANSWER - The sun will finally swell into a red giant and the earth will no
longer be in the habitable zone meaning that it will be way to hot and the lakes, oceans, and
rivers will boil away and evaporate
What are the main differences between oceanic crust and continental crust? - CORRECT
ANSWER - oceanic crust
