Which of the following is true about earth's freshwater, air, soil and trees? a. although these resources are renewable, they present very few benefits for humans. b. although these resources are renewable, their present benefits can be reduced if used carelessly. c. although these resources are nonrenewable, humans don't have to worry about conserving them. d. these resources are nonrenewable, so humans must stop using them if they are to survive.

c: warm water flows from the western tropical pacific toward south america. that should be the right answer! hope it .

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.