A hot air balloon rises because it is filled with a gas :

denser than air

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less dense than air

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as dense as air

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the given statement is wrong

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Solution

The correct option is B less dense than air
More denser objects stays at the bottom.
Since, the hot air balloon rises because it is filled with a gas which is less dense than the air .So, the air has the tendency to move down and the balloon has the tendency to move in the upward direction.

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A hot air balloon rises because it is filled with a gas :

The correct option is B less dense than airMore denser objects stays at the bottom.Since, the hot air balloon rises because it is filled with a gas which is less dense than the air .So, the air has the tendency to move down and the balloon has the tendency to move in the upward direction.

The correct option is B less dense than air
More denser objects stays at the bottom.
Since, the hot air balloon rises because it is filled with a gas which is less dense than the air .So, the air has the tendency to move down and the balloon has the tendency to move in the upward direction.