They can be- depending on your angle to the sun. Your best chance of seeing a "Raincircle" will be from an airplane.
Parts of a whole.
If you are in a airplane rainbows are actually a circle shape,but from our view it is semi-circle.
A circle graph, or pie chart is best used for showing parts of a whole.
When two rainbows are put together in photoshop.
Rainbows do not have an end, but they appear as a circle if viewed from above. The colors of a rainbow are caused by the refraction and reflection of sunlight in raindrops.
Rainbows appear as circles when viewed from above because the sunlight is refracted and reflected inside raindrops, creating a full circle of colors.
relative amounts of each part of a whole <><><><><><><><><><><><><><>
open circle.
No. God made rainbows as a promise to Noah that he wouldn't ever again flood the whole earth. We see rainbows after it rains because God is reminding us of his promise.
Because the rainbow is reflected.
A rainbow has no length- it is a refraction of light, dependent on the angle between the viewer and the light source. When seen from an airplane, it may be a circle of color, and not a "bow".
No, rainbows form a full circle, but we only see a semicircle due to the horizon blocking the bottom half. The shape of a rainbow depends on the observer's position relative to the sunlight and water droplets that create it.