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Question
Stars make new elements by ____________.(1 point)
Responses
fusing elements together
fusing elements together
fusing protons to atoms
fusing protons to atoms
fusing electrons to atoms
fusing electrons to atoms
fusing neutrons to atoms
fusing neutrons to atoms
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Stars make new elements by fusing elements together.
Put the different stages of the life cycle of an average start in the correct sequence. (1 point)
Arrange responses in the correct order to answer the question. Select a response, navigate to the desired position and insert response at that position. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can be moved using the up and down arrow keys or by dragging with a mouse.
protostar
nebula
star
red giant
planetary nebula
white dwarf
nebula -> protostar -> star -> red giant -> planetary nebula -> white dwarf
Which statement about how the sun compares with other stars is correct?(1 point)
Responses
A red supergiant is bigger, hotter, and gives off more light than the sun.
A red supergiant is bigger, hotter, and gives off more light than the sun.
A white dwarf is smaller, hotter, and gives off more light than the sun.
A white dwarf is smaller, hotter, and gives off more light than the sun.
A red supergiant is bigger than the sun and gives off more light, but it is not hotter than the sun.
A red supergiant is bigger than the sun and gives off more light, but it is not hotter than the sun.
White dwarfs and red supergiants both give off more light than the sun, but only a white dwarf is hotter.
A red supergiant is bigger, hotter, and gives off more light than the sun.
If a star has an absolute magnitude of 0 and a temperature of 4,500 K, what spectral class is it classified under?(1 point)
Responses
O
O
B
B
A
A
F
F
G
G
K
K
M
The star would be classified under the spectral class G.
What type of star has an absolute magnitude of 10 and a temperature of 15,000 K?(1 point)
Responses
Blue Giant
Blue Giant
Red Supergiants
Red Supergiants
Red Giants
Red Giants
White Dwarfs
The star would be classified as a White Dwarf.
Which is an accurate statement about the different types of radiation emitted by the Sun? (1 point)
Responses
Radiation with the longest wavelengths is most likely to cause wide variation in Total Solar Irradiance.
Radiation with the longest wavelengths is most likely to cause wide variation in Total Solar Irradiance.
Radiation with the longest wavelengths is emitted steadily and constantly from the sun.
Radiation with the longest wavelengths is emitted steadily and constantly from the sun.
Radiation with the shortest wavelengths is most likely to cause wide variation in Total Solar Irradiance.
Radiation with the shortest wavelengths is most likely to cause wide variation in Total Solar Irradiance.
Radiation with the shortest wavelengths is emitted steadily and constantly from the sun.