what is the separation of colors in a rainbow produced by? different refraction for different wavelengths. different interference for different wavelengths. different in total internal reflection for different wavelengths. different diffractions for different wavelengths

Pls pls pls pls ! describe, in your own words, how you found the epicenter of the earthquake.

Which boundary is associated with the building of the himalaya mountains? convergent transform divergent hot spot

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?