Answer: a change in energy state occurs. The answer is dark or opaque - not able to be seen through.
Explanation:
The absorption of light makes an object dark or opaque to the wavelengths or colors of the incoming wave: Wood is opaque to visible light. Some materials are opaque to some wavelengths of light, but transparent to others. Glass and water are opaque to ultraviolet light, but transparent to visible light.
I just looked it up, it's carbon!
The right answer is HEPA filter.
A HEPA filter (High Efficiency on Particles Air) can filter up to 99.97% of 0.3μ aerial particles.
These filters are used to clean the air and retain suspended particles (dust, pollen, bacteria etc.) and other particles that can cause respiratory allergy in sensitive subjects.
They are very used in sterile rooms
Answer:
The following are the two functions of citric acid in the feta cheese:
1. Coagulation, that is, the chemical reaction of citric acid with proteins in milk leads to separation of curd and whey.
2. The citric acid functions as a chelating agent, which is required for syneresis, that is, for controlling the moisture content.
The following are the two functions of agar in the feta cheese:
1. Feta means to slice, and agar offers sliceable texture to the feta cheese as it produces a solid gel-like composition.
2. It is a vegetarian alternative for gelatin and exhibits higher gelling properties.
Simple! Air, Water, Food, and Shelter!
