Because green is the color being reflected, and the other colors are absorbed
They are sometimes yellow or some other colors, but if they are green it's because they are not blue.
it is the light around us that gives the things color. we see things that are made up with different pigments. What our eyes see is what we see
Because the light reflects off something and turns that object green.
If an object is white in sunlight it will be green in green light. A white object reflects all wavelengths (colors) of light that shine on it. If only green light shines on it, that color will be reflected and the object will look green.
it will look green
it will look black but I am not sure
Green
black
It will look black, or green, depending on the hue of the red. A green filter blocks the red light but no red object is reflecting solely in the red wavelengths, and any non-red light will appear green through the filter.
You have some problem with your eye.
The object would be black, because red cannot reflect green light so no colour is reflected of the object.
black
A green object would look blaack in a red light because coloured objects absorb all colours except the colour they are, so a green object absorbs 6 colours (red, orange, yellow, blue, indigo, violet) and reflects 1 (green). In this situation, there is no green light to reflect and it can't reflect other colours, so it looks black. :)
A pure green object would reflect the green third of the spectrum, and absorb the red and blue portions. Magenta light is composed of red and blue waves so they would be absorbed by the green object. Therefore, in theory, a green object would appear neutral, virtually black. But this assumes that all the colors are very pure and perfectly balanced. This is unlikely, so the object would most likely look near neutral with some color skewing one way or another.
Horse isle answer: blue