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प्रश्न
In earlier days, which instruments are used to measure time?
एक शब्द/वाक्यांश उत्तर
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उत्तर
Sand clock and Sundial.
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क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
In earlier days, which instruments are used to measure time?
Sand clock and Sundial.