How does Bohr's model of the atom explain how fireworks give off their colors, or how neon lights glow!

In a sample of oxygen gas at room temperature, the average kinetic energy of all the balls stays constant. which postulate of kinetic molecular theory best explains how this is possible? a. attractive forces between gas particles are negligible because the particles of an ideal gas are moving so quickly. b. collisions between gas particles are elastic; there is no net gain or loss of kinetic energy. c. gases consist of a large number of small particles, with a lot of space between the particles. d. gas particles are in constant, random motion, and higher kinetic energy means faster movement.

Which method would be best to separate a mixture of sand and gravel

Explain how global warming could have affected yellowstone frog and salamander habitat's, resulting in changes in the populations of these species