Norovirus infections can be prevented by using good hand hygiene with soap and water (not alcohol solutions) and avoiding contact with sick individuals and their environment. This is much harder than it sounds. One sick crew member on a cruise ship can contaminate food served to hundreds of peo...
If you're familiar with the lines "Water, water, everywhere, nor any drop to drink" from the poem "The Rime of the Ancient Mariner," you'll understand that most of this water -- 97 percent of it -- is undrinkable because it's saltwater (see illustration on next page). Only 3 perc...
If you see a red or pinkish ring developing in your toilet bowl, it's time to use chlorine bleach in a spray solution. Thoroughly clean the bowl and then spray it with chlorine bleach. Let it sit in the bowl for about 15 to 20 minutes. You should also put about a 1/4 cup in yo...
Store jewellery in an anti-tarnish pouch or airtight container. Storing it away from free-flowing and especially humid air is important. Avoid exposing silver jewellery to chlorine, lotions, salt water and other chemicals. Wear your jewellery often! The movement and natural oils on your skin help...
Disinfectants are chemical agents that kill or eliminate microorganisms such as bacteria, viruses, fungi, and protozoa on surfaces or objects. Examples include chlorine, alcohols, formaldehyde, and hydrogen peroxide.Answer and Explanation: The presence of organic matter, ...
This is why laundry ammonia, which is a solution of ammonia in water, conducts electricity, but not very well. Can h2so4 burn skin? Sulfuric acid is a very strong chemical that is corrosive. Corrosive means it can cause severe burns and tissue damage when it comes into contact with the ...
Other toxic vape substances include components you may recognize, like chlorine andmercury. Substances in vapes known to damage internal organs include benzaldehyde, cadmium, crotonaldehyde, and dimethylnitrosamine. It will be some time before it's known conclusively whether these substances are doing th...
However, when surface water goes through treatment plants, they add chemicals like chlorine to kill microorganisms. Lime, which is an inorganic material that contains calcium compound, is then added to counteract the effects of chlorine. Calcium Deposits on Hair ...
On the low wavelength end of the UV spectrum, UV radiation starts to become ionizing. When UV radiation starts to become ionizing, then overexposure to it may cause damage to organic matter.Answer and Explanation: Sunscreen is usually made out of zinc oxide and tita...
To reduce internal friction, chlorine, sulfur, and phosphorous atoms in straight oil and in extreme ‑pressure (EP) coolant additives penetrate the micro cracks in metallic surfaces, thereby preventing the rebonding of metal atoms displaced in the cutting process and reducing the power needed to ...