Cody's family went hiking along a stream in Georgia and found a waterfall At the bottom of the waterfall, they noticed many small pebbles with smooth edges on the bottom of the stream.
If Cody's family added more rocks to the stream at the bottom of the waterfall, what should they expect to happen to the size of
the rocks over time?

Please help chores are in the picture!!

What is the difference between the conducting zone and the respiratory zone of the respiratory system? the conducting zone is a series of cavities and tubes that move air to the respiratory zone where gases exchange with the bloodstream. the conducting zone exchanges gases between the lungs and the alveoli and the respiratory zone is a series of cavities and tubes that move air to the conducting zone. the conducting zone moves oxygen into the cells and the respiratory zone takes carbon dioxide away from the cells. the conducting zone moves oxygen into the bloodstream and the respiratory zone takes carbon dioxide away from the bloodstream.