Neptune is the only planet not visible with the naked eye, though Uranus is extremely dim and hard to spot.
Macroscopic means visible to naked eyes. The muscles are almost always visible to naked eyes. The only exception is the tiny muscle attached to hair root.
Venus is considered the brightest object (and planet) to be seen from Earth (Being visible with the naked eye even in light-polluted cities).
Uranus. But it has to be perfect conditions, no light pollution and you have to know where to look.
Any substance such as an mixture, colloid, suspension, solution, and all non-microscopic matters in our ecosystem are visible to the naked eyes.
Yes, many people have: it is visible to the naked eye.
Because we were made that way nobody actually knows why.
Yes, the planet Mars is visible to the naked eye.
Venus
I think I see a planet with my naked eye off to the east 45% 9:46 pm 7-31-08. An I mistaken?
No, carbon dioxide is a colourless transparent gas.
No, carbon monoxide is colourless transparent gas.
Six planets are visible from Earth without any optical equipment except your eyes.