A measure of thermal energy transferred between two different bodies at different temperatures would be the correct answer. So, the third option.
The rate of photosynthesis was measured by counting the amount of oxygen, a product of photosynthesis, generated by the plant. When the plant placed closer to the light source in a given time it generated more bubbles than when it was placed farther away from the light source.
Answer:
1. Comparative
2. Independent variable
3. The pH is the Dependent variable
H2O is the correct answer :)
M(H2SO4)=n*M=4.75*98=465.5g