What I do know is that Copper is a metal that has been deposited from hot sulphur solutions, created in volcanic regions. The hot solutions concentrated the copper up to a thousand times more than would normally be found in rocks. The resultant enriched rocks are called copper ores. I hope this helps.
Answer:
The answer to your question is Gamma Rays.
Explanation:
I'm sorry if I get this wrong, I also have this same question. But, I believe I am right!
That is an echo
Example 3d echo
The flatter concave lens becomes the emergent ray moves towards being parallel two incident rays.
Explanation-
A concave lens is a lens that diverges the rays, passing through the lens, from its path thereby appearing to come from a point where image is formed these types of lenses are used by people who find trouble in seeing things that are at a distance. The flatter the lens become it moves more towards becoming a glass slab which refracts the light such that the emergent ray is parallel two incident Ray but only from another point.