A river, such as the one in the diagram, receives pollution from all the different sources shown. The types of pollutants and the amounts that enter the river will be different, but all the sources contribute to pollution of this freshwater. An illustration of a river running through the middle of an area with sources of pollution on the left and right of the river. On the left of the river in order from back to front: wastewater treatment plants, rural homes, suburban development, croplands On the right of the river in order from back to front: urban streets, factories, animal feedlot

Josie lives in the suburban development shown in the diagram. Identify three sources of pollution that affect the river by the development. Then, compare the types of pollution likely to be produced by the croplands and the animal feedlot.

the answer is b)3/8x+1

1. amino acid refers to the fundamental building block of proteins, comprising of an amino group and a carboxyl group.

2. catalyst refers to any substance, which increases the rate of chemical reaction without being used up in the reaction.

3. a complex molecule containing he genetic code is dna or deoxyribonucleic acid.

4. an enzyme refers to a molecule of protein, which is unique in accelerating up a particular chemical reaction in the biological systems.

5. nucleic acid refers to an sequence of sugars, phosphates, and nitrogenous bases, for example, dna and rna.

6. a protein refers to a large, composite organic molecule comprising of a huge number of amino acids associated together with the of peptide bonds.

7. rna refers to a nucleic acid that takes part in the production of proteins.

8. substrate refers to a compound, which takes part in a chemical reaction, and is chemically modified by the reaction.