Sketch a space filling model of a water molecule, show polarity by label positive and negative charge regions of the molecule

The space filling model of the water is shown in the figure given below in the figure, where δ+/ δ- represent the partial charge.

The water molecule consist of 2 hydrogen and one oxygen atom. The oxygen atom is the central molecule and the other two hydrogen are bind to the oxygen atom. The sizeof the oxygen is much bigger than the hydrogen and is more electronegative than hydrogen. Due to the elctronegativity, the oxygen pulls the electron and gain slight negative charge and the hydrogen gain slight positive charge and result in polarity.

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.