Which conditions most likely produced the effect on co2 level over the first 23 minutes

Mario performed an experiment to determine if photosynthesis was affected by the amount of light that a plant received. what could he have done to increase the validity of his data? reduce the number of plants. remove the 1 hour group. add a 0 hours control. measure the oxygen in liters

Organisms within a population must compete for resources to survive

What is earths lithospheric plates interact at