1. how can you explain the difference in the importance of the ions sodium (na+) and (cl-) in seawater as compared to river water?
2. why do you think the bicarbonate (hco3-) ion is so far down the list of ion abundance in seawater?

Iam stuck on this question! 45 points : ) how do increases in temperature affect the density of ocean water? answer choices: (a) density does not change (b) density increases (c) density becomes variable (d) density decreases

The earth's internal process which drives seafloor spreading is

All of the following statements about the biosphere are true except: a. light and heat from the sun do not affect the biosphere. b. the biosphere gets resources from earth's crust, hydrosphere and atmosphere. c. like "biology", the name for the biosphere comes from the greek word for life. d. the biosphere includes all living organisms on earth's surface.