Colour Photography takes colour pictures and black and white photography take black and white pictures
Realist painters applied pure color directly onto the canvas; Impressionist painters did not.
Contrast in art refers to color, shade, texture, etc that is different from each other. For example, if you have very light areas and then very dark areas, or very little color on a piece except a portion that is bright with color, or very little detail and then a focus area that is very detailed, they are said to be in contrast of each other. On a 3D piece such as a carving or clay sculpture, contrast can be the difference between shallow dips and ridges and deeper/higher ones, or it can be the difference between textures. If you play around with graphics art editor software, the more contrast you have, the brighter the brights and the darker the darks. The higher the setting, the less subtle differences you have between the lights and the darks in an image, until all you have is white and black.
A Color To Which Black Is Added
black
The combination of a color with black to make it darker
There's no difference in the approach.
Sepia
the color
Finely powdered silver is black in color (which is what made it useful for black and white photography - now largely superseded by digital photography).
The Color
the color
Black is darker.
your mum's head
The color only.
it's just color difference
The only difference is the color. It's all the same.
there isnt, or white can be black shade with white color pencil