At a library activity, while comparing observations, when learners compare two situations, which simple machine is commonly used to draw water from a traditional well?
पुस्तकालय गतिविधि में अवलोकनों की तुलना करते समय, जब विद्यार्थी दो स्थितियों की तुलना करते हैं पारंपरिक कुएँ से पानी निकालने में सामान्यतः कौन-सी सरल मशीन उपयोग होती है?
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