Ocean 115 - Introduction to Oceanography » Spring 2022 » Stars

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Question #1
How many stars are in the Milky Way galaxy?
A.   Several million
B.   Hundreds of millions
C.   Several billion
D.   Hundreds of billions
E.   Hundreds of trillions
Question #2
What caused the first stars to form?
A.   The weak nuclear force
B.   The strong nuclear force
C.   Gravity
D.   Electromagnetism
Question #3
What did the first stars produce?
A.   Protons
B.   Hydrogen
C.   Hydrogen and helium
D.   New elements, such as oxygen and carbon
Question #4
How did the produced material get into space to be part of our bodies?
A.   Electromagnetism
B.   Neutrino flow
C.   Supernovas
D.   Gravity
Question #5
The brightest most massive stars are?
A.   Blue
B.   Red
C.   Yellow
D.   Orange
Question #6
Why does the star shine?
A.   Nuclear fusion
B.   Nuclear fission
C.   Gravity
D.   Electromagnetic repulsion
Question #7
What causes sun spots?
A.   Cool spots under solar storms
B.   Gravitational anomalies
C.   Large nuclear explosions on a star
D.   Hot spots under solar storms
Question #8
What will happen to the Sun in 5 billion years?
A.   It will stay the same
B.   It will become a red giant
C.   It will become a brown dwarf
D.   It will go supernova
Question #9
Where are stellar nurseries found?
A.   At the galaxy edges
B.   Molecular clouds all over the galaxy
C.   Molecular clouds at the center of the galaxy
D.   In black holes
Question #10
What is Gliese 229 and what orbits it?
A.   A small red star with a brown dwarf in orbit
B.   A proto star with a white dwarf in orbit
C.   A T-tauri star with a proto star in orbit
D.   A main sequence star with a brown dwarf in orbit
E.   A red giant with a black hole in orbit

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