Question 15 chapter 8.2. the sun is a very unusual and unique star in terms of its size and other characteristics, such as chemical composition, luminosity, age, etc.? o true ○ false question 16 chapter 8.2. what best describes the kind of structures in a galaxy where conditions are particularly favorable for stars to form? o a remnants of exploded stars that have a high temperature and are often associated with pulsars. ob. dense clouds of gas and dust that have a low temperature and relatively high density. o c. clusters of binary star systems where close encounters between stars are frequent. od. aceretion disks surrounding super massive black holes. question 17 1 pc chapter 82. where do planets form around young stars? oa in the swirl of gas and dust called the circumstellar disc, which remains gravitationally bound to the star but does not fall in. ob. in a spherical cloud of cometary bodies that surrounds the star called the oort cloud. asfilamets of material that are pulled off of the sun by nearby passing stars. , d. none of the above