Thinking about the electromagnet and the horseshoe magnet in the item Electromagnet Field Lines, how would the field lines change if the magnet was moved to the side of the electromagnet? What about closer or
farther away? What if the horseshoe magnet was replaced by a bar magnet?

answer: 20 percent

the fish culture has become a developing commercial practice in developing countries which is already prominent in developed countries of the world. the major fish protein demand is being supplemented in developing countries is   fishing to meet the needs of the growing population. therefore, in some developing nations, the percentage of animal protein from fish in the diet can be as high as 20 percent.