Answer:
4m
Explanation:
For most solids,
Volume = base area × height
120 = 30 × h
h = 120/30
h = 4m
No, the correct sentence would be
I read a book called "The War Between the States"
I would agree with you - the conclusion should leave readers with an important thought at the end.
This thought should never be new, or opposing to the previous ideas you had been writing before. It also shouldn't be confusing, but quite conversely - it should explain everything and put everything in place.