How does plate tectonics affect the sizes of the Atlantic and pacific oceqns

Based on the topographic map of mt. st. helens, what is the contour interval of the volcano about height is 2,950 m?

The picture represents a structure of the respiratory system. which is the function of this structure? to bring air into the body to exchange oxygen with carbon dioxide to carry air to the lungs to release oxygen from the body

Which line in the graph above best illustrates an effect of the carbon dioxide level in the blood on breathing rate before, during and after a period of exercise? 1.b,2.c,3.a,4.d