Match these items. 1. animal without a backbone clastic 2. animal with a backbone recrystallization 3. youngest on top unconformity 4. simultaneous deposition vertebrate 5. comparing rock columns superposition 6. missing rock graded bed 7. rock from particles correlation 8. crystal growth invertebrate

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.