Please help me ASAP. :)

the cost of mining is extremely low compared to the money earned from mining, creating income to improve the environment.

burning fossil fouls really decrease the carbon in the atmosphere so b

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.

for a different answer set the answer would be because the oxygen in the water had depleted (apex)