Kinetic energy is never negative, but potential energy can be.
Potential energy depends on height above some reference level, and you can pick any level you want as the reference. So, if the object is below the reference level you pick, then its potential energy relative to your reference level is negative.
What that means is: You have to lift it / do work on it / give it more energy than it has now ... in order to move it to the reference level.
(That's exactly the situation with electrons bound to an atom. Their energy is considered negative, because we have to do work and give them more energy to rip them away from the atom.) _____________________________________
Regarding the other choices:
-- Kinetic energy is scalar ... Yes. So is potential energy.
-- Kinetic energy increases with height ... No. It doesn't, but potential energy does.
-- Kinetic energy depends on position ... No. It doesn't, but potential energy does.
In-situ leaching or solution mining offers the least ground disruptive type of mining and waste. This type of mining only dissolves the uranium where it is under the ground then pump up to the ground and further processed through milling.