From 5 to 7 km , it changes according to the weather condition.
No, gas is typically invisible to the naked eye.
When you look at your blood with the naked eye all you see is red liquid. This is all anyone sees with the naked eye.
The term "naked eye" means that there is nothing helping the eye to see. for example, if you are using glassess or a telescpoe, then you are not using the naked eye.
You have a 3rd eye
Something that is so small that you cannot see it with the naked eye but must use a microscope to observe it
Around 2500-5000 visible stars with the naked eye.
Without a microscope? Never. Atoms are much to small to see with the naked eye...
no.
no not with the naked eye
No, electrons are too small to be seen with the naked eye. They are subatomic particles that are much smaller than the wavelength of visible light, making them invisible to human eyes.
The air is transparent for the molecules are much to thinly spread out for us to see with the naked eye
You can't see them because your eye can't focus that much on microscopic things. Hope this helps! :)