latitude- the angular distance of a place north or south of the earth's equator, or of a celestial object north or south of the celestial equator, usually expressed in degrees and minutes.
1) is A and 2) is C
Sorry if I’m wrong :)
I think it's an inclined plane.
It was invented by Archimedes.
If the reservoir has a dam, then it is A. But since your asking about just a reservoir, then the answer is B. If you think about it, a reservoir is almost like a lake, and it can overflow as well.