Mixing involve the wavelengths in the mixture and the perceived color results from what is . This is called color mixture. Mixing , which is called color mixture, involves wavelengths and the perceived color results from what is .

The answer to the question is as follows.

Mixing _lights_involve _adding up_the wavelengths in the mixture and the perceived color results from what is _added_. This is called __additive color mixture___ color mixture.

Explanation:    

Additive color mixing is the putting together two or more sets of different  wavelengths of light to form  light of a different wavelength hence a light of a different color. That is mixing primary light waves of different colors produces a secondary light wave of a different color by addition of the the wavelengths of the primary light wave.

On the other hand mixing of colorants  of different colors produces a mixture of the colorants with a new color by subtracting wavelengths of light.

the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees. 

the higher the current the higher the mag field around it the higher the influence on the compass