Which of the following is a characteristic of putrefaction?
a. skin tightening
b. muscle relaxation
c. bloating
d. a blue discoloration

What is the difference between an igneous, sedimentary and metamorphic rock

Are the earth's ocean floor and continents the same age geologically? why or why not?

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.