sawdust and cat litter
An oil stain can be very hard to clean up since the ground will absorb some of the oil, but kitty litter does work.
Yes, gauze can absorb oil to some extent. However, gauze may not be as effective as materials specifically designed to absorb oil, such as oil-absorbent pads or materials like kitty litter.
Sodium chloride is hygroscopic, absorb water.
With talcum powder
Yes, it does absorb oil but not as well as a sponge or hair. If you need to absorb oil with cotton balls you will need to get lots and lots of them.
The bacteria die and absorb the oil.
Yes
I think it can
Yes
I'm doing a science project on how to absorb oil and this is what i got You could use cotton balls or some old t-shirt, thick paper towel...ect.
Emulsifier
Hair is made of proteins, mostly keratin. The cells are no longer vascular, but the outside of the hair shaft is porous, and can absorb water and oil.