¿Es posible identificar una materia de otra, sólo con los sentidos?

Based on her survey, which advertising mediums will work best to publicize leslie's in-store specials?

Where is most of the fresh water on earth found a in the ocean b in glaciers and in ice caps c in rivers d in the soil

Asap many people try to eliminate fat from their diets which is one reason it is necessary for humans to eat fat a) fat is the only way to get energy b) every cell in the body must contain fat c)fat stores less energy than polysaccharides d) saturated fats make blood vessels healthier