Misc: which famous actor is the nephew of francis ford coppolo?

Questions

By feeding hens certain ____ they can be made to lay eggs with varicolored yolks?

By the end of 1983, how many computers were in use in the world ?

By the time a child finishes elementary school they will have witnessed how many murders on television?

By the time a child finishes elementary school they will have witnessed how many acts of violence on television?

By what chemical process do plants manufacture food?