alleryWhat does the BRT amla study teach?
ATribal knowledge is unreliable
BRandomised blocks always find the cause
CLocal first-hand observation has real value
DFire should be banned in forests
Answer & Solution
Correct answer: C. Local first-hand observation has real value
1. Elaborate experiments gave little understanding because the key parameter was missed.
2. The Solligas' years of first-hand observation had given them valuable understanding.
3. So actual observation matters for complex systems; the other options contradict the episode.
_Source: NCERT Habitat and Learning position paper, 3.5 Value of Observations_
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