1.It is 4
2.The youngest rock (ignious)rock cut the other sedmetary rocks
3.it is principle of cross cutting
4.the rock 4 occur after all rocks formed
5.b/c it cross cut the oher rocks
6.principle of cross cutting r/ship
7.something like earth quick or mountain building ,
8.principle of original horizontality
9.the first is D
10.the last put dawm is D(cross cutting principle )