Complex molecules in space may be found a in an

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Complex molecules in space may be found A in an ionized hydrogen HII region B from ASTRON 0089 at University of Pittsburgh-Pittsburgh Campus

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Intermediate Algebra
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Chapter 5 / Exercise 127
Intermediate Algebra
Mckeague
Expert Verified
9. Complex molecules in space may be foundA) in an ionized hydrogen (HII) region.B) scattered evenly throughout the disk of the galaxy.C) inside dense dust clouds like the those seen in the Trifid nebula.D) in reflection nebulae.
____ 10. Which of the following statements about interstellar clouds is nottrue?
____ 11. Where with respect to the main sequence would protostars be located in the H-R diagram?
____ 12. At what stage of its life does a star pass through the protostar phase?
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Intermediate Algebra
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Chapter 5 / Exercise 127
Intermediate Algebra
Mckeague
Expert Verified
____ 13. The size of a white dwarf is typically like that ofA) the SunB) the EarthC) a red dwarf starD) Jupiter
____ 14. What are the main features that make clusters of stars useful to astronomers?
____ 15. The final remnant of the evolution of a Sun-like star is a
____ 16. The source of a protostar's heat is
____ 17. What event occurs at the end of the protostar stage of a star's life?A) Nuclear reactions begin in its core, converting hydrogen into helium and generating energy, thus raising internal pressure that balances infall due to gravity.B) It gives off shock waves and induces further star formation.C) It begins a long period of contraction, in which gravitational energy is converted into heat.D) Gas is spun off from its equator, forming planets.

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