The balanced equation for photosynthesis is shown below.

6 co2 + 6 h2o → c6h12o6 + 6 o2

which statement best justifies the conservation of mass during photosynthesis?

the total number of carbon atoms on both sides is 6.
the total number of hydrogen atoms on both sides is 18.
the number of oxygen atoms is equal to the number of carbon atoms on each side.
the number of oxygen atoms is equal to the number of hydrogen atoms on each side.

The total number of carbon atoms on both sides is 6.

6CO₂ + 6H₂O     →     C₆H₁₂O₆ + 6O₂

Number of atoms on each side:

C = 6

O= 18

H= 12

relative humidity, temperature and dew point -- are bound together in the mathematical relationship below. relative humidity changes when temperatures change. because warm air can hold more water vapor than cool air, relative humidity falls when the temperature rises if no moisture is added to the air. so i would say a