Please help quickly! Worth 30 Points

I believe it would be as follows,

Water scarcity is the lack of freshwater resources to meet the demand.

which

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.