The graph labeled (1. Aggregate emissions, 2. Energy consumption, 3. Population, 4. Vehicle miles traveled) shows that the pollution control methods are having a positive effect in the United States. The proof is (1. A decreasing, 2. An increasing, 3. An unchanging) trend in this graph, with the percentage drop over this period reaching (1. -63, 2. 0, 3. 17, 4. 147) %.

halogen, any of the six nonmetallic elements that constitute group 17 (group viia) of the periodic table. the halogen elements are fluorine (f), chlorine (cl), bromine (br), iodine (i), astatine (at), and tennessine (ts).

i believe the answer is c

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.