Archetype Sub-90 Dry-Wipe Invariant (Photosynthesis Inverse-Square Law (I ∝ 1/d²), Limiting Factors & Capillary Potometers (πr²ʰ/t)): Potometer 2-step check: (1) Halve capillary diameter to radius r = d/2 before computing V = pir²h; (2) Divide by time in minutes/hours. For lamp distance d1 -> d2, multiply light intensity by (d1 / d2)².
sub90 ESATARCH-B-12: Photosynthesis Inverse-Square Law (I ∝ 1/d²), Limiting Factors & Capillary Potometers (πr²ʰ/t)Biology
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SUB-90 ZONE (<35S)
0.0s35s Sub-9090s ESAT Budget150s Classroom
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