Please help me with my science!

Energy derived from hot rocks and fluids beneath the earth’s surface is

One of the purposes of transcription is to produce a sequence of bases that

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.