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LC2 Exam Review Earth Systems Questions and Answers
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The Sun is expected to be in the __________ stage for a total of _____ billion years - Answer-main sequence, 10 billion years Stars with more mass will expand into ______ - Answer-red supergiants Lighter elements will fuse to create slightly heavier elements such as ______ - Answer-carbon ...

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  • October 15, 2024
  • 2
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • lc2 exam review earth systems questions and answer
  • the sun is expected to be in the stage

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  • Earth's Systems

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LC2 Exam Review Earth Systems
Questions and Answers
The Sun is expected to be in the __________ stage for a total of _____ billion years -
Answer-main sequence, 10 billion years

Stars with more mass will expand into ______ - Answer-red supergiants

Lighter elements will fuse to create slightly heavier elements such as ______ - Answer-
carbon

When stars die they explode into a _____ - Answer-supernova

Extremely_____ temperatures as a result of the Big Bang are NOT responsible for
nuclear fusion - Answer-low

Nuclear fusion is the reaction at the ____ of stars that releases various amounts of
energy that will eventually reach the _____ of the _____ system - Answer-core, edge,
solar

What is the Sun's current fuel source for nuclear fusion? - Answer-Hydrogen

The energy and matter from this reaction is used to create _______ - Answer-helium

The Sun is expected to be in the _________ stage of development for a total of 10
billion years - Answer-main sequence

The Sun will burn out and enter a new stage of development when _______ becomes
the main _________ - Answer-helium, fuel source

Stars with _____ mass will expand into____________ after all original fuel is used
during the _______________ - Answer-more, red supergiants, main sequence

Lighter elements will fuse to create slightly heavier elements, such as __________ -
Answer-carbon

Explain how scientists can determine the elements that compose this star using the
star's light spectra. - Answer-Every element releases a unique light spectrum. This light
travels through space and can be detected with a spectroscope. The light spectra from
stars can be compared to an individual element spectrum from a lab to determine which
elements are emitting light and, therefore, of which element a star is composed.

Betelgeuse - Answer-Massive star, currently in red supergiant stage, will become a
supernova, relatively bright, about 3,000 K

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