S1 : Plants need carbon for building the tissue of their bodies. S6 : Thus through a complex process called photosynthesis, plants receive their requirements from the soil and Sun. P : The breaking up of carbon dioxide into its components requires energy, which they derive from the Sun. Q : Plants’ other needs of nutrients are derived from the soil and water through their roots. R : They derive this carbon from the carbon dioxide in the air. S : They break up the carbon dioxide, absorb the carbon and discharge oxygen into the air for animals to breathe. The proper sequence should be: