What is the name of the process in which oceanic crust moves apart at mid-ocean ridges due to convention currents in the mantle?
a.
subduction
b.
compression
c.
convergence
d.
seafloor spreading

Avertical clean glass piezometer tube has an inside diameter of d = 1 mm and is used to measure pressure in a horizontal pipe carrying water as shown. due to pressure in the pipe, the water at 20c rises into the tube to a height h. if the water pressure in the pipe is p = 500 pa gauge, estimate the height h: (a) without considering surface tension (b) with surface tension (capillary) effects. the contact angle  can be assumed at 30 deg