A) The elevation finder can help you find out the elevation of land for a country, place or other location. You can even figure out the land elevation below the sea or ocean. You can do this by typing in an address, name of a place, coordinates etc., into the corresponding input fields above.
I saw an experiment in a small ramshackle museum in Ecuador on the equator. There was a sink on a stand. When it was placed a metre on one side of the equator the water circled clockwise as it drained, one metre on the other side the water drained anti-clockwise and when directly over the equator the water drained, straight down, with no rotation.
Equatorial counter currents. A large amount of water is driven westward due to the north and south equatorial currents. Due to the coriolis effect, it piles up on the western margins, making it up to 2 meters higher up than the water on the eastern side. Then, under the force of gravity, it flows eastward and counter to the adjoining continental currents.