Answer: In 1858, Pasteur filtered air through a gun-cotton filter and, upon microscopic examination of the cotton, found it full of microorganisms.
I hope this helped!
Answer:
You didn't give options, but I would say either rat guts, animal fecal matter, or bugs.
Explanation:
possible answer:
i saw a video of a women who had ben smoking for 30 year, she had been diagnosed with lung cancerand was told she only had 3 months to live.
this message influences me to refuse cigars.
the message supports fact because it is well known that you can get cancer from smoking.
A material safety data sheet (MSDS) provides information on materials and chemical products. Both of these technicians are correct since the MSDS contains several sections including two sections referring to the toxicological information and the physical and chemical properties of the material. The physical and chemical properties involve information such as freezing/melting point, viscosity, solubility in water and others. The toxicological information should include information on the short- and long-term effects of exposure to this material and the several types of toxicity that this material could cause.