2. A student is visiting his grandmother's house and notices that she has lactose-free milk in her refrigerator. He does some research on lactose-free milk and finds out that it is just milk that contains the lactase enzyme. He hypothesizes that the lactase causes the milk to undergo a chemical reaction in order to make it lactose-free, Which of the following observations best supports the student's hypothesis? Saved. A. The lactose-free milk smells about the same as regular milk. B. The lactose-free milk has a different taste from regular milk. C. The lactose-free milk appears to be the same color as regular milk D. The lactose-free milk has a shorter expiration date than regular milk​

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.