Most people notice them in well-lit rooms or outdoors on a bright day. Often floaters are normal, but sometimes they're a sign of a more serious eye problem, such as retinal detachment, especially if you also see light flashes or a dark shadow come across the edge of your vision.
A Composite material (also called a composition material or shortened to composite, which is the common name) is a material made from two or more constituent materials with significantly different physical or chemical properties that, when combined, produce a material with characteristics different from the individual components.
Chemical compound. A chemical compound is a pure material made out of a combination of two or more chemical elements that have been bonded through chemical procedures. Unlike an element, which is quite basic and simple because it is made up of only an atom and electrons, a chemical compound is more complex.