What strategies have artists used to make their work more effective for political and social change? Provide at least one example.

Artists may use networking to enable political and social change. By this I mean artists would actually use business skills in order to climb the social ladder and gain publicity. Take the photographer Dorothea Lange for example...her art expresses what life was like in the Great Depression. Despite how unfair it may be, an artist doesn't just become famous for making good art; they have to know the right people. Because she lived in San Francisco, CA, one of the best places in the world for networking, we can only assume that she met just the right people to help publicize her artwork.

i believe the answer is  the similarity is that both are sacrifices which have the same purpose and sacrifice - jesus christ, but the difference is in offering of that sacrifice.

the similarity is that both are sacrifices which have the same purpose (repenting our sins) and sacrifice - jesus christ.  the difference is in the way of the offering that sacrifice. the sacrifice of jesus on the calvary is sacrifice of his actual living body and blood, but the sacrifice of the mass is the sacrifice of the jesus through bread (body) and blood (wine). in the sacrifice on calvary jesus was offered for us; while at mass he offers himself through us.