Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used. These four surfaces are opaque; that is, they reflect or absorb certain rays of light. Determine the color of each surface based on the diagrams.
black
green
white
blue
red

In the first figure, the surface absorbs all colors except for green light, which is reflected: so, the surface will appear as green to our eyes, because green is the only color which is reflected by that surface.

Similarly, in the second figure, the surface absorbs all colors except for blue, and so the surface will appear blue to our eyes.

In the third figure, the surface absorbs all colors, so it will appear black to our eyes (because no colors are reflected, and black=absence of colors).

In the fourth figure, all colors are reflected: this means the surface will appear white to our eyes (white= sum of all colors

The object would have to be spherical, orbit the sun, and be traveling in a path with other objects.

The correct answer is b, social stratification is needed for a society to exist. marxist theory regarding social stratification is that due to the differing economic capacities among people in society, a natural separation occurs between those that own the means of production and those that sell their labour in the production chain.