Strong evidence that the universe is expanding comes from the fact that the light emitted from nearly all distant galaxies appears to be

Note: the following questions are unrelated to the balmer series or the martian. refer to your course notes. a sun-sized star will spend most of its lifetime as a: white dwarf b. red giant c. protostar d. main-sequence star

What is a subatomic particle with a negative charge and very little mass?

Which of the following compounds would be primarily ionic? methane, ch4, ammonia nh3, calcium chloride, cacl2, or carbon dioxide, co2