man made
Sand
A singer can make a glass resonate by singing a specific pitch that matches the natural frequency of the glass. This causes the glass to vibrate sympathetically and eventually shatter due to the resonance.
No it is a man made material.Glasses are typically brittle and can be optically transparent.The most familiar type of glass is soda-lime glass, which is composed of about 75% Silicon dioxide (SiO2), sodium oxide (Na2O) from soda ash, lime (CaO), and several minor additives. The term glass is often used to refer only to this specific use
Glass is primarily man-made, as it is typically produced by melting silica sand (a natural mineral) at high temperatures and then rapidly cooling it to form a solid without crystallizing. While there are naturally occurring glasses like obsidian, most of the glass we encounter in everyday products is manufactured by humans.
natural resources cause the glass
Iron ore is a natural mineral this is used by man to make Iron.
sand and glass mixture
Fiberglass is man-made material composed of fibers of glass. It is not a natural material, as it is produced through the combination of silica sand, limestone, and other materials heated to high temperatures.
Fulgurites are formed when lightning strikes sand and a fused glass crystaline shape is formed. The earth was making this natural glass long before man controlled fire.
The answer is Sand. Sandstrom can erode the mountain and sands on the top will tear down the mountain. Sand inside the eyes of man who can see will make the man blind and finally glass is made from sand and spectacles are made from glass which help blind man see.
Obsidian is a natural glass.
Fiberglass is not a natural product; it is a man-made material composed of fine fibers of glass. The process of manufacturing fiberglass involves melting glass and then forcing it through a fine sieve to create the fibers, which are then woven together.