Which of the following combinations is an example of a split-complementary color scheme?                 a.  violet, yellow-green, and yellow-orange      b.  blue-green, red, and yellow-green      c.  green, red-orange, and yellow-orange      d.  blue, red-violet, and violet

Split Complementary. A split complementary scheme involves the use of three colors. Start with one color, find its complement and then use the two colors on either side of it. For example, the complement of blue-green is red-orange and the split complement of blue-green would be red and orange.

it's : violet, yellow-green, and yellow-orange. (just took the PF test and it was the correct answer)

changeable lenses of different focal lengths allows light to enter the camera,which then forms the image on light-sensitive film;

it's d, robert k merton. in 1994 he was awarded the national medal of science for his contributions to the field and for having founded the sociology of science.