Sparta I believe... they trained young boys for the military.
The correct order is the crust, mantle, outer core, then inner core.
The President can reject a proposed law
Water is a polar molecule and also acts as a polar solvent. When a chemical species is said to be "polar," this means that the positive and negative electrical charges are unevenly distributed. The positive charge comes from the atomic nucleus, while the electrons supply the negative charge.
