Water is harnessed to move a turbine. how is energy converted in this case? kinetic energy is converted to electrical energy. kinetic energy is converted to potential energy. potential energy is converted to kinetic energy. potential energy is converted to thermal energy.

Answer is potential energy is converted to kinetic energy

Water turbines are used to make electricity in hydroelectric power. To generate hydroelectric power from water, dam is built on river to harness its energy. By constructing a dam, the river water is not allowed to flow freely downhill from its mountain source, but water allowed to fall through a height to rotate water turbines. In this process potential energy of water is converted to kinetic energy. The rotating water turbine drives a generator that turns the mechanical energy into electrical energy.

answer and explanation;

volcanic rocks are igneous rocks which form from lava, molten rock which has been thrust out of a volcano onto the surface of a rocky body such as an asteroid, planet, or dwarf planet.  

plutonic rocks are igneous rocks which form from subterranean chambers of molten rock or magma. plutonic rocks make up the base of continental crust as well as oceanic crust. their slow rate of formation causes them to be coarse grained since there is plenty of time for large crystals to form before the magma solidifies into rock.

the textural difference is that plutonic rocks are more coarse grained than volcanic rocks. plutonic rocks are coarse grained while volcanic are fine grained ; glassey or fragmental. since fine and coarse are adjectives the decision as to whether a rock is fine or coarse grained is generally made on the bases of whether or not the individual crystals can be seen in most if the rock.