Reading Challenge - Photosynthesis

Which of the following variables was measured in Ms. Rodriguez's experiment to assess photosynthesis in plants with different leaf structures?

Which plant type produced the highest average amount of oxygen according to the data?

What was the average rate of oxygen production for the Waxy-Leaf Plant?

What is the difference in oxygen production between the plant with the highest rate (Broad-Leaf) and the plant with the lowest rate (Needle-Leaf)?

Based on the data, why would a waxy-leaf structure be an advantage for a plant in a hot, dry desert?