the atmospheres of red giant stars
Grains of dust.
Since interstellar clouds are most often overdensities in the interstellar medium, they have overwhelmingly similar chemical compositions - most of them (about 90%) being hydrogen, although this may be molecular, or ionized (plasma), with most of the remainder being helium. Heavier elements and compounds have been discovered spectroscopically in interstellar clouds, including more recently some unexpected light organic molecules.
Pyroclastic is relating to the eruption of a volcano. It is the extremely hot gas and dust mix produced by one.
baby stars are surrounded by a cloud of "stuff", gas and dust particles and the like. As they rotate the "stuff" flattens out into a disk (think spinning pizza dough). This matter moves inward and is swept up by the magnetic field lines and poured onto the star at variable rates. The friction in the disk between the gas and the dust causes the dust to start clumping together forming proplyds, and eventually planets (also helps explain why all planets are on the same plane of solar systems without getting into gravitational mechanics, they all form in the disk )
If you mean a dust devil, then technically yes. Though they aren't really tornadoes, dust devils have killed people. However, fatalities from dust devils are extremely rare, only a handful have ever been recorded. Most of the time dust devils are harmless.
An interstellar cloud.
An interstellar cloud made of gas, dust, and plasma in a galaxy.
Interstellar gas and dust.
A nebula is what it is. :)
These are generically referred to as, not surprisingly; 'interstellar clouds'
solar nebula
In astronomy, the interstellar medium [See Link] is the gas and dust that pervade interstellar space: the matter that exists between the stars within a galaxy. It fills interstellar space and blends smoothly into the surrounding intergalactic space. The energy that occupies the same volume, in the form of electromagnetic radiation, is the interstellar radiation field.The interstellar medium consists of an extremely dilute mixture of ions, atoms, molecules, larger dust grains, cosmic rays, and (galactic) magnetic fields.
The dustlike particles produced in the anthers of flowers are pollen.
If you're referring to the space between solar systems: lots. Rocks and planetoids wander; radiation is absorbed and produced; space stretches; Von Neumann probes originating from long-extinct civilisations slowly make their way towards our solar system to convert it to rubble - you name it, it's bound to be out there somewhere.
Grains of dust.
Interstellar dust
It is from interstellar gas and dust that we all came. The stars, planets, asteroids, and comets all came from clouds of gas and dust. As far as OUR gas and dust NOW, nothing much is produced. Its mostly all used up in the making of us.