what exactly is a black hole and how does it eat everything that goes near it?
For metallic silver, no, not really; the metal is chemically relatively inert and non-toxic; if you deal with silver nitrate, take care not to spill any - it's somewhat toxic, as other silver salts are, and can leave some pretty nasty stains on skin and clothing.
well Mirrors Reflect stuff Glass sometimes does With the Help of Sun.. now Water Needs Light too but not as much so..Its just relly hard to explain xD