DENDROLOGY

Detailed explanation-1: -Oxygen is not a limiting factor as it is never considered as an element required for photosynthesis. It is released as a byproduct during photosynthesis.

Detailed explanation-2: -The rate of photosynthesis can be affected by various limiting factors such as light intensity, carbon dioxide concentration, temperature and water availability.

Detailed explanation-3: -Photosynthesis is the process of synthesis of food by plants using carbon dioxide and water in presence of sunlight and chlorophyll. Oxygen (O2) is released during the process as a waste product. Hence, oxygen is not essential for the process of photosynthesis.

Detailed explanation-4: -In the case of photosynthesis, oxygen is never a limiting factor, because oxygen is a bi-product released after photosynthesis and never an element required for photosynthesis.

Detailed explanation-5: -Light intensity, CO2 concentration and temperature are the three limiting factors of photosynthesis that you need to learn.