Examlex
Crystals of elemental sulfur are easily crushed, and melt at 113°C.Liquid sulfur does not conduct electricity.What kind of crystal is this?
Corneal Abrasion
A scratch or injury to the cornea, the clear protective covering over the front part of the eye, often causing pain, redness, and sensitivity to light.
Scratch
To make a shallow cut or mark on a surface with a sharp or hard object.
Astigmatism
Blurring of the vision caused by an abnormal curvature of the cornea.
Blurred Vision
A decrease in eyesight sharpness and inability to see fine details, which can be a symptom of various eye conditions.
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