2. Table salt. This is the most common kind of salt, and the one most used in the our kitchen. Sourced from salt mines, it is then refined and most minerals removed. Anti-caking agents are added to prevent clumping, as is iodine, a nutrient not always naturally present in salt.
Opaque is from a Latin word meaning dark, and that was its original sense in English, but it now means literally not transparent or metaphorically hard to understand; unclear: Some of his sentences are really opaque..
From the absence of light. Shadow is form from an opaque or translucent object blocking a light source (since light travels in a straight line). Shadows are patches of noticeably less light than the surroundingareas. A shadow is made when an opaque object blocks a light sourcefrom traveling through it.