Question

What two groups of rocks are formed from all three kinds of rocks?

Answer 1

Conglomerates/breccia and gneisses I would say come the closest.

Explanation:

Conglomerates are a sedimentary rock made up of clasts from just about any other kind of rock types. The same is true for the more angular rock called a breccia. But, its important to note that they don't HAVE to be made of of all three kinds, but its possible.

Metamorphic gneisses can also be formed from pre-existing sedimentary, igneous or metamorphic rocks - but again, the key word is that the MAY be made of all three, but not MUST.