We have millions of alveoli under our lungs, they diffuse oxygen molecules in our blood, then they get transported to every organ of our body through our Heart
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When two bodies collide with each other in the absence of an external force, then the total final momentum of the bodies is equal to their total initial momentum.
I am not sure if this is the answer you are looking for but a earthquake occurs when the plates shift.
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<span>In a 2-dimensional coordinate system, the x- and y-axes
are typically perpendicular to each other. (C) </span>
