Your friend wants to join the school track team what kind of info do u need to collect?

Why do scientists believe that light is made of streams of particles? scientists believe that light is made of streams of particles because only the presence of photons can explain phenomena observed during experiments on the photoelectric effect. these observations include only some frequencies of light causing the ejection of electrons, no time gap existing between light striking a metal and electrons being ejected, and intensity having no effect on the kinetic energy of the ejected electrons.

Describe different biomes. what are some adaptations that organisms (plants or animals) must have to live in each biome?

Disney, viacom and aol time warner are examples of