What type of rock can melt under the right conditions?

Anybody who knows ap biology, can you friend or message me

Models are non-visual ways of coummincating how someone thinks about something in the natural world

Check all that apply diatoms are marine algae that have a shell made of silica, what are some of the uses of the silica shell after the diatoms die? 1.the shells make up the diatomaceous earth used in filters 2.it can be used as an ingredient in abrasives 3.they are used in food products 4.the shells can be used in some insulating materials