The process that involves in an earthquake

Ais a landform that is formed at the mouth of a river from the deposition of sediment carried by the river as the water flows.

Why do leaves change color in the fall? green pigments break down and no longer mask the color of chlorophyll. chlorophyll breaks down and no longer masks the colors of other pigments. red- and yellow-colored pigments grow and mask green-colored chlorophyll. green-colored chlorophyll breaks down and turns red and yellow.

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above