How does impulsivity relate to substance dependency

How does buring fossil fuels impact does carbon cycle? what large impact does this have on the envirnment?

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.

How many types of rock can form from the rock cycle