MCAT Question of the Day
    •

    Q:

    		 Which of the following concepts best explains the reason that a hot air balloon is able to ascend into the sky? (Remember that the bottom of the hot air balloon is open so heated air may be blown in.)
    		 

    A

    		 Air Pressure

    B

    		 Density of Air

    C

    		 Volume of Air

    D

    		 Air Resistance



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