Maria works exclusively inputting data into medical records. She seldom takes a break from inputting and works 4 days per week, 10 hours each day. While driving, she noticed a change in her distance vision. Which of the following should she do to help ease eye strain while working? a. Place her hands and wrists in horizontal alignment b. Regularly focus on a distant object c. Place source documents flat beside her computer d. Frequently rotate her neck and shoulders

the electromagnetic energy from the sun arrives in the form of visible and invisible light.

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.