What happens when an electron and a proton get close together

they will attrack

Explanation:

proton and a electron will attract each other but if there the same like electron and electron they will repel each other

Explanation:

The closer they are together, the stronger this attraction wil be. two protons (or two electrons) will repel each other

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.