if you have three apples and you take away two, how many do you have?, what goes up but never comes down?, I watch you all the time, but you never see me. I follow you everywhere you go. what am I?, The more you take, the more you leave behind. What am I, I'm not alive, but I grow. I don't have lungs, but I need air. what am I?, what can fill a room but takes up no space., I have cities but no houses, rivers but no water. what am I?, .

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