Which treatment is chemical and uses disinfecting agents to clean the
water?
O primary
O secondary
O tertiary

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.

What will happen if deforestation continue to destroy the green plant on the planet

The importance of the mind as a part of the body is an example of: