Simplicity is an example of an abstract noun. It is because
an abstract noun is a word to describe something that a person can’t use any
sensory functions in which simplicity is a way of having to describe someone
without having to use any functions.
This statement is ironic because they ARE a crowd of kids.
Piggy is angry because they are acting like kids, but they are kids. Piggy expects them to act more maturely than they are capable of doing.
It is statements like this that contribute to Piggy's being an outsider. He continually places himself "above" the others and criticizes their behavior, much like an adult would.
Pinball I think but not very sure
Hope that helps answer a bit
It is produced by the processes of living organisms which draw in calcite to construct their shells and structures. The shells and structures that remain(the clasts in this case) after the organisms have died become cemented together into the rock conquina.