A source of sound is detected in the middle of a room. Which can account for a decrease in sound intensity for an observer?

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.

During the process of two rails or sides break apart and attract new nucleotide bases to form a new and complete strand.