MCQOPTIONS
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| 1. |
Photosynthetically Active Radiation (PAR) is: |
| A. | 5% of incident solar radiation |
| B. | 50% of incident solar radiation |
| C. | 0.5% of incident solar radiation |
| D. | 99% of incident solar radiation |
| Answer» C. 0.5% of incident solar radiation | |