Answer:
Since oxygen has a higher electronegativity than hydrogen, the electrons of the molecule tend to group closer to the oxygen than to the hydrogen atoms. as well as , water is said to be a "polar" molecule, which means that there is an uneven distribution of electron density.
thats what i found sorry if its confusing
Yes the earth is changing due to the plate tectonics because when the earth ah earthquakes and all that kind of stuff here comes earth and reshapes it.
By diffusion hope this helps
