properties of a star, science homework help

Question 1 (1 point)Which property of a star can be determined from its color?amassbstellar distancecsurface temperaturedvolumeQuestion 2 (1 point)Which main sequence stars are the least massive?ablueborangecreddyellowQuestion 3 (1 point)The sun belongs to which class of stars?ablack holebmain sequencecred giantdwhite dwarfQuestion 4 (1 point)Which terrestrial planet has a surface landscape similar to that of the older areas of the Earth’s moon?aMercurybNeptunecUranusdVenusQuestion 5 (1 point)What can astronomers determine based on the observed red shifts in the spectral lines of distant galaxies?aEarth is in the center of the universe.bThe universe is contracting.cThe universe is expanding.dThe universe is in a steady state.Question 6 (1 point)Which of these discoveries led to the modern view of the solar system regarding the orbits of the planets?acirclesbellipseschyperbolasdparabolasQuestion 7 (1 point)Which features are found on both Mars and Earth?aactive volcanoesberosional features related to flowing watercimpact craters preserved from early in the planets' historiesdoceansQuestion 8 (1 point)When a medium-sized, main sequence star, like our sun, has exhausted the fuel in its inner region, it becomes which type of star?ablack dwarfbblack holecbrown dwarfdred giantQuestion 9 (1 point)What is used to determine the distances to the stars?aemission nebulaebfluorescencecstellar massdstellar parallaxQuestion 10 (1 point)The apparent backward "drift" of the planets compared to the background stars is known by what term?aoccultationbprecessioncPtolemaic motiondretrograde motion