Which best describes why scientists need to be creative? A. They need to be sure that the evidence backs up the conclusion. B. They need to notice all of the evidence carefully. C. They need to be constantly asking questions. D. They need to think of ways to solve problems?

D, They need to think of ways to solve problems.

Explanation:

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.

the rocks are classified by the geological process they are formed by. the three main groups of rocks are igneous, metamorphic, and sedimentary. minerals are not they are classified under the chemical classes they are in. these groups include silicates, sulfates and carbonates.