Trend Analysis of Oxygen Production with CO2 Concentration

Very Hard Data Representation Understanding Graphs And Tables

A research study was conducted to analyze the effects of varying concentrations of carbon dioxide (CO₂) on the rate of photosynthesis in a specific species of aquatic plant over a 30-day period. The following table presents data collected on the average oxygen production (in mg/hr) at three different CO₂ concentrations: 200 ppm, 600 ppm, and 1000 ppm.

Table: Average Oxygen Production at Different CO₂ Concentrations

CO₂ Concentration (ppm)	Average Oxygen Production (mg/hr)
200	2.5
600	4.5
1000	5.8

Based on the data presented in the table, what is the primary trend observed in the average oxygen production as the CO₂ concentration increases?

Oxygen production decreases as CO2 concentration increases.

Oxygen production remains constant regardless of CO2 concentration.

Oxygen production increases with rising CO2 concentration.

Oxygen production initially increases, then decreases at high CO2 levels.

Hint

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