2. What is the shortest wavelength humans can see?
blue
green
red
violet

Explanation:

Wavelength gets determined by the spherical drum of electrons relative to the nucleus. The set gets into a pattern.

It is like each electron is a node, and its works best when they have the same rhythm.

One can be at 1x, or 2x, or 3x, so long as the nodes stay in synch. Here is an example where three waves want a pattern in synch - even if two are going 2x, the third (blue). That is a 2x or 3x would all fit into the blue base wave function.

The Correct Answer is B

Explanation:

The logic for the Bantu movements are strange to several, but they most suitable incorporate these listed below: Scorching up of the Sahara meadows which motivated clubs that followed cultivation to relocate in the exploration of new productive ground and water for cultivation.Bantu migrants started many distinct abilities into the societies they communicated with, including complex cultivation and commerce.