Hi all, I have been told to do a presentation on a topic that I have no idea about, and can't find much info on! I tried googling and all, i kinda know the answer to the first part of the question, the second part i have no clue about. The question is: Why does it take so long for deep ocean waters to circulate through the hydrologic cycle? What happens to substances that contaminate deep ocean water or deep aquifers in the ground? So, water at the bottom doesnt circulate fast because its cold(less sunlight reaches the deeper part of the ocean) and it's dense, it has a lot of mass above it hence increasing the pressure, also is it right to say the kinetic eneryg of the molecules is less due to low temprature so less movement? Anything more I can add? More importantly, can someone please gimme a hint or two on the second part of the question? "What happens to substances that contaminate deep ocean water or deep aquifers in the ground?"
