Can you list your description options and I’ll help you from there?
Answer:
The main factors affecting rate of photosynthesis are light intensity, carbon dioxide concentration and temperature.
Explanation:
The correct answer is the arterial blood carbon oxide level.
Arterial blood test measures oxygen and carbon dioxide levels in the blood. It also measures the body's acid-base level, which is normally balanced when an individual is healthy. The normal range for carbon dioxide is 23 to 29 mEq/L.