A cloud of dust and gas in space is known as a Nebula.
Fir and Pine trees are of the same species so as long as the shavings have been kiln dried and are as dust free as possible they would be safe for equine use.
The term for these sound-alike words is homophone.The homophone for fur is fir (a coniferous tree).
If you mean "fir" as in "fir tree" it is pronounced like the word "fur"
I will plant a fir tree
it is fir
No, Fir is a softwood.
All fine dust can be hazardous and clog the lungs and may cause asthma or other lung ailments when exposed long term. Wearing a mask is always recommended. Some trees from places such as Africa can cause rashes of the skin and irritate the lungs much worse than cedar, fir or pine.
A homophone for "fir" is "fur."
The homophone for fur is fir.
FIR is first information report.
balsam fir, Douglas-fir, Fraser fir, noble fir, Scotch pine, Virginia pine and white pine.
FIR is First Information Report.