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The Sun
Test Description: Review questions about the Sun.
Instructions: Answer all questions to get your test result.
1) Which layer of the Sun\\\'s atmosphere is the hottest?
A
chromosphere
B
corona
C
none of these are correct
D
photosphere
2) The Sun\\\'s density is greatest in which region?
A
convective zone
B
chromosphere
C
core
D
corona
3) Most of the light from the Sun is in which part of the electromagnetic spectrum?
A
microwave
B
x-ray
C
radio
D
visible
4) The Sun\\\'s energy moves within the radiative zone via_____________.
A
atoms
B
convection
C
photons
D
Van Allen radiation
5) An Aurora is produced when there is a collision between ________________ and _______________ in Earth\\\'s upper atmosphere.
A
light; atoms and molecules
B
the solar wind; atoms and molecules
C
atoms; molecules
D
neutrinos; atoms and molecules
6) Which statement BEST explains why the Sun is a star?
A
It creates its own energy through nuclear fusion
B
It\\\'s a huge ball of gas.
C
It\\\'s in the center of the solar system
D
The planets all orbit it
7) Our Sun is considered a(n) ___________________ star.
A
average
B
giant
C
small
D
large
8) Ninety percent of the Sun is composed of which element?
A
hydrogen
B
carbon
C
helium
D
iron
9) Nuclear fusion occurs in which region of the Sun?
A
corona
B
chromosphere
C
core
D
convection zone
10) Which region of the Sun is brightest in x-ray and uv images?
A
core
B
corona
C
photosphere
D
chromosphere
*select an answer for all questions
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