Recycling :-)
The condition of material closely packed together is called "dense" or "compact."
A material covering a hole is called a patch. It can be used to repair damage or prevent something from escaping.
solid
It's a different material for almost every glue, but it's known as the 'carrier'.
When a reader already knows about material to be read, it is referred to as prior knowledge or background knowledge. This existing knowledge can influence the reader's understanding and interpretation of the text.
Simply a chemical bond
When two pieces of material join together, it is called a seam. Seams can be created using different techniques such as stitching, welding, or adhesive bonding.
That process is known as innovation. It involves combining or modifying existing elements to create something new and valuable to address a specific need or problem in society.
It is called cryopreservation when something is preserved in ice or snow, a process used to preserve biological material at extremely low temperatures.
It is called "joining" or "combining" two things together.
Layers of material pressed together are called laminates. Laminates are commonly used in various industries, such as construction, furniture making, and printed circuit board manufacturing, to create composite materials with specific properties and characteristics.
If two elements are joined together it is a compound