B is your answer hope it helps
this is in order from the top down :
city hall
powerhouse
border patrol
streets
factories
postal service
warehouses / storage buildings
trash / recycling facilities
Hope this helps :)
The two features that make hair a good subject for establishing individual identity are scale structure and medullary index. The scale structure involves the length, color and diameter of the hair.
The medullary shape is the layer of hair shaft where the above attributes are featured. The medullar layer is an inside layer that runs down to the center of the cortex.
most of a atoms mass is in the nucleus of the atom:) hope this helps you
