Normally no, but if the steam is at a sufficiently temperature, and being viewed in darkness, then it may display its colour temperature. This can occur with some fumaroles.
Technically, steam is the invisible phase of water vapour, but common use accepts the condensate phase, near boiling point, as steam.
=Yes=
microscope
Something that is visible to the naked eye, really!
Electromagnetic radiation having a wavelengths between 380 - 750nm is visible to the normal human eye. This region of the spectrum is called visible light. Radiation of any other wavelength cannot be seen with the naked eye
Bacteria and viruses can breed. i.e. When bacteria breeds, they form large colonies visible to the naked eye When viruses breed, they become more deadly or mutate but are still virtually invisible to the naked eye.
Microscopic
can saturated or dry steam be seen
No. But yes. Yeast is a microbe but it is visible with the naked eye
There is only one asteroid currently visible to the naked eye. It is the Vesta asteroid.
no
The term for visible with the unaided (naked) eye is "gross", as in gross anatomy.
Around 2500-5000 visible stars with the naked eye.
No, they are much too small.
No
Latent fingerprints are the types of fingerprints that aren't visible to the naked eye.
Some seals do.
Visible light
because it has light of sun