General Science- Watavaran Dabav Kis Sayantra Ke Dwara Mapa Jata Hai ?

Q.10077: वातावरण दबाव किस यंत्र के द्वारा मापा जाता है ?
A.
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D.
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वातावरण दबाव किस यंत्र के द्वारा मापा जाता है ? - By which instrument atmospheric pressure is measured?  General Science in hindi,   Altimeter question answers in hindi pdf  hydrometer questions in hindi, Know About hygrometer General Science online test General Science notes in hindi quiz book    Barometer