Which of these statements best explains why water flows from point A to point B?

The salinity at B is more than at A.
The wind velocity at B is more than at A.
The temperature at A is more than at B.
The water density at A is more than at B

Question

Which of these statements best explains why water flows from point A to point B?
 	
	The salinity at B is more than at A.
	The wind velocity at B is more than at A.
	The temperature at A is more than at B.
	The water density at A is more than at B

watermelon14 · Answer

attachment

watermelon14 · Answer

@Ryaan

anonymous · Answer

What is your guess?

watermelon14 · Answer

i don't know maybe A or D..

watermelon14 · Answer

@evilmath are u sure it can't be A?

anonymous · Answer

@chmvijay

watermelon14 · Answer

@texaschic101

anonymous · Answer

I'm not sure which one is correct :I

anonymous · Answer

I would say that B makes the most sense, if you imagine the passat thread.

texaschic101 · Answer

The water temperature in A is more then at B

texaschic101 · Answer

This is the Global Conveyor Belt

anonymous · Answer

My answer makes just sense for horizontal streams :/ So the density of the water influenced by the salt might bring a conclusion for the vertical stream.

watermelon14 · Answer

Thank you both of u! I don't know whether I should pick B or C though

texaschic101 · Answer

oops.....I think it is D. Read this... http://science.howstuffworks.com/environmental/earth/oceanography/ocean-current3.htm

watermelon14 · Answer

yes that is what I though first! Thank you!:))) @texaschic101