1 Apply Aloe vera gel or juice: Aloe vera gel or juice helps get rid of acne scars and makes your facial skin healthier. 2  There are many brands of aloe vera gel or juice available on the market today.
Jupiterimages/Photos.com/Getty Images. Limestones are a class of sedimentary rocks composed of the same mineral, calcite, which is made from calcium carbonate, or CaCO3. Despite this similarity in composition, however, not all limestone rocks are the same. Chalk is actually a special form of limestone that exhibits some differences from other rocks in the same class.
Pastel chalk or soft pastel is easier to blend and draw with because it is softer, hence the name, soft pastel. Soft pastels are made of ground pigments, gum tra â¦ gacanth, and a filler. Chalk simply has a dye added to its mixture and is harder. Unlike pastels, chalk is made up of gum Arabic which washes off with water.