Yes, people should be concerned because plaque buildup might cause your breath to smell bad, or cause your teeth to look very yellow, consider brushing your teeth and using mouth wash daily and don’t drink or eat unhealthy foods that will cause your teeth to look bad. plaque buildup might also cause damage to the stomach and maybe affect when you have to use the restroom.
Answer:
Cleaning up oil spills and metal contaminates in a low-impact, sustainable and inexpensive manner remains a challenge for companies and governments globally.
But a group of researchers at UW–Madison is examining alternative materials that can be modified to absorb oil and chemicals. If further developed, the technology may offer a cheaper and “greener” method to absorb oil and heavy metals from water and other surfaces.
Aerogels, which are highly porous materials and the lightest solids in existence, are already used in a variety of applications, ranging from insulation and aerospace materials to thickening agents in paints. The aerogel prepared in Gong’s lab is made of cellulose nanofibrils (sustainable wood-based materials) and an environmentally friendly polymer. Furthermore, these cellulose-based aerogels are made using an environmentally friendly freeze-drying process without the use of organic solvents.
It’s the combination of this “greener"material and its high performance that got Gong’s attention.
“For this material, one unique property is that it has superior absorbing ability for organic solvents — up to nearly 100 times its own weight,” she says. “It also has strong absorbing ability for metal ions.”
Treating the cellulose-based aerogel with specific types of silane after it is made through the freeze-drying process is a key step that gives the aerogel its water-repelling and oil-absorbing properties.
Answer: Albedo
Explanation:
((Earth's normal albedo is about 0.3.)))
At the end of the day, around 30 percent of approaching sunlight based radiation is reflected go into space and 70 percent is consumed.
The respiratory system<span> brings oxygen into the lungs when you breathe. </span>The digestive system<span> breaks food down into nutrients such as glucose. Now the </span>circulatory system<span> enters the picture. It transports glucose and other nutrients from </span>the digestive system<span> to the cells.
</span><span>Integumentary System. (The skin, hair, and nails form the body's outer covering, or integument.)
Muscular System
Skeletal System
Circulatory System
Nervous System
Respiratory System
Hope this helps!:)
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