Which list accurately identifies the hierarchy of space from smallest to largest? a. universe, solar system, galaxy, planet b. galaxy, solar system, universe, planet c. moon, solar system, galaxy, universe d. universe, galaxy, solar system, moon

How does a sample of helium at 15 degree celsius compare to a sample of helium at 215 k? a) the helium at 15 degrees celsius has a higher average kinetic energy that the sample at 215 k. b) the helium at 15 degrees celsius has lower nuclear energy that the sample at 215 k. c) the helium at 15 degrees celsius has slower- moving atoms that the sample at 215 k. d) the helium at 15 degrees celsius has smaller atoms than the sample at 215 k.