A survey is conducted among school students. 50 students are randomly selected and they are asked, whether they prefer dogs, cats or other pets. In the survey, 10 boys preferred dogs, 9 boys preferred cats, 3 boys preferred other pets, 12 girls preferred dogs, 6 girls preferred cats and 10 girls preferred other pets. Construct a two-way frequency table for the above data.​

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.