The Baltimore City Council on Monday approved two bills that environmental activists in the city had been fighting to advance for years.The first bans the construction or expansion of any crude oil terminals in the city. The goal of this legislation, which passed by a vote of 14-1 and now must be signed by the mayor, is to reduce the risk that trains carrying volatile crude oil could derail and explode in the city.The second bill outlaws a petroleum product: Styrofoam cups and fast-food containers, which do not break down in the environment like paper products, and so create a persistent source of litter, and a blight in streams and along roadsides.