Decades: 20s BC - 10s BC - 0s BC - 0s - 10s - 20s - 30s - 40s - 50s - 60s - 70s
Years: 20 21 22 23 24 25 26 27 28 29
Significant People
... pigment molecules. The typical overall chemical reaction of photosynthesis is: 6H2O + 6CO2 + light → C6H12O6 (glucose) + 6O2 In simple English terms, this is ...