Plants use energy from sunlight to turn water and carbon dioxide into an energy-rich sugar called glucose.this process is called photosynthesis takes place inside capsules in the leaf cells, called chloroplast. 6CO2 + 6H2O → C6H12O6 + 6O2, reactants are= Carbon dioxide,water,light energy products=Glucose and oxygen
So are familiar with civilization adaption? Are you familiar with emergence? Google these two and read all you can in order to know the maximum of the begining of any society.