السلام عليكم ورحمة الله وبركاته
[align=left]Q1: A) solid ball because the coefficient of volume expansion is greater
than the linear[/align]
[align=left]Q3)72F=72C[/align]
[align=left]Q4) yes If they have already the same temperature [/align]
Q5) I think because the the glass which thermometer expands first then the mercury rises up