The percentage of solar radiation used in photosynthesis is

🔑 Key Points
→ Solar Radiation:
Solar radiation is radiant (electromagnetic) energy from the sun.
It provides light and heat for the Earth and energy for photosynthesis.
This radiant energy is necessary for the metabolism of the environment and its inhabitants.

🌱 Photosynthesis:
Photosynthesis is the process used by plants, algae, and certain bacteria to harness energy from sunlight and turn it into chemical energy.
The efficiency of solar energy utilization:
Plants do not absorb all incoming sunlight (due to reflection, respiration requirements of photosynthesis, and the need for optimal solar radiation levels) and do not convert all harvested energy into biomass, which results in a maximum overall photosynthetic efficiency of 3 to 6% of total solar radiation.
The rate at which plants photosynthesize depends on:

The amount of light reaching the leaves,
The temperature of the environment, and
The availability of water and other nutrients such as nitrogen and phosphorus.
Therefore, the percentage of solar radiation used in photosynthesis is 4%.