Title: The Sun has a core in which energy travels outward primarily by radiation. Post by: bessieboo97 on Mar 19, 2018 The Sun has a core in which energy travels outward primarily by radiation.
a. True b. False Indicate whether the statement is true or false Question 2 A megaparsec is equivalent to a. 3.26 light-years. b. 206,265 AU. c. the age of our solar system. d. a million parsecs. e. the diameter of the Milky Way galaxy. Question 3 Ninety percent of all stars fuse helium to form carbon and lie on the main sequence. a. True b. False Indicate whether the statement is true or false Question 4 ___________ have elongated nuclei with spiral structure extending from the ends of the elongations. The Milky Way is a member of this class of galaxy. a. Spiral galaxies b. Barred spiral galaxies c. Elliptical galaxies d. Irregular galaxies e. S0 galaxies Question 5 Some young star clusters contain large numbers of protostars. a. True b. False Indicate whether the statement is true or false Title: The Sun has a core in which energy travels outward primarily by radiation. Post by: Kayla1 on Mar 19, 2018 Content hidden
|