the comet hale-bopp is 3.75 x 10^10 km away from the sun. how many au away from the sun is it?
5.62 x 10 au
3.75 x 10au
250 au
0.004 au

Ibelieve the answer is c

Answer (d) may increase or decrease porosity through dissolution or deposition;

It is useful for historians to write narratives so that history can be passed on from their point of view.  think about a story being told in third person, then think about it again being told in first person, by someone who actually experienced the event.

D. coal i hope that