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| 1. |
A balloon filled with hydrogen will |
| Answer» <html><body><p> Reach a <a href="https://interviewquestions.tuteehub.com/tag/particular-1147539" style="font-weight:bold;" target="_blank" title="Click to know more about PARTICULAR">PARTICULAR</a> height and remain floating</p><br/><br/><p>A balloon <a href="https://interviewquestions.tuteehub.com/tag/filled-2641169" style="font-weight:bold;" target="_blank" title="Click to know more about FILLED">FILLED</a> with the hydrogen stops <a href="https://interviewquestions.tuteehub.com/tag/rising-1189698" style="font-weight:bold;" target="_blank" title="Click to know more about RISING">RISING</a> after it has attained a <a href="https://interviewquestions.tuteehub.com/tag/certain-407894" style="font-weight:bold;" target="_blank" title="Click to know more about CERTAIN">CERTAIN</a> height in the sky. This is because as height increases, the density of air decreases resulting in a decrease of buoyant force.</p></body></html> | |