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Question 16 1 1 pts most of the data leading to

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Question 161 / 1 ptsMost of the data leading to current star formation modelling comes from...Correct!observations of many stars and nebulae at differing phases of evolution.observations of reflection and emission nebulae.observations of the Sun's evolution.observations of evolving star properties over the past two centuries.
Question 171 / 1 ptsImagine a collapsing cloud that is made of completely hydrogen and helium gas (no heavierelements). What is likely to be the result?
Question 181 / 1 ptsWhy do we suspect that the star "Vega" is a very young star?
Question 191 / 1 ptsImagine a massive collapsing cloud made of mostly helium. What is its future?
hydrogen.Correct!Fewer stars would form because the temperature required to fuse helium in the core is muchhigher than hydrogen.All of these.The temperature of stars would be lower than the temperature in hydrogen stars.Question 201 / 1 ptsStars spends most of their lives...Correct!converting hydrogen into helium.as collapsing protostars.converting helium into carbon, nitrogen, and oxygen.in supernova explosions.
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Term
Spring
Professor
Brad Snowder
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