The topographic maps below show the same location before and after a natural event. What most likely caused the changes around the river?
A. A strong wind moved sediment from the river to the hill.
В. A landslide brought sediment from the hill to the edge of the river.
C. During a drought, the river slowed down and deposited sediment.
D. After a storm, fast-moving water in the river removed sediment.​

a community that experiences major changes undergoes progress

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.