Answer:
I am pretty sure it is A!
:D
A ship sailing away from you gradually goes out of sight,
starting from the bottom and moving up the sides of the ship.
The Earth is a sphere. As the ship gets farther away from
you, it's working its way around the curve of the sphere.
Since you can't see around the curve of the Earth, the
lowest point on the ship that you can see moves slowly
up the ship.
Answer:
A, C, D and E are the true statement about current flowing.
Answer: I'm pretty sure that this one's just an opinion but I guess 3 meters so you have a chance to notice it and move or 1 meter so that it doesn't hit as hard when it lands.