Select the star life cycle that is accurate? a. star of one stellar mass, red giant, planetary nebula, white dwarf o b. nebula, star of one stellar mass, supernova, black hole o c. supernova, star of three stellar masses, red giant, nebula o d. nebula, white dwarf, red giant, planetary nebula

What must occur for air masses to form fronts

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.

Which proportionality applies to avogadro’s law?