Many cuts of beef now meet the USDA's regulations to qualify as lean or extra lean. 1  Of these, the following are considered extra lean: 2  Eye of round roast and steak. 3  Sirloin tip side steak. 4  Top round roast and steak. 5  Bottom round roast and steak. 6  Top sirloin steak.
Some varieties of Limestone are more porous than others. In general, limestone countertops are porous and vulnerable to stains. Water and soap spills need to be wiped right to prevent staining.Acid substances such as vinegar, lemon juice and ammonia will cause surface discoloration and etching.n general, limestone countertops are porous and vulnerable to stains. Water and soap spills need to be wiped right to prevent staining. Acid substances such as vinegar, lemon juice and ammonia will cause surface discoloration and etching.
Limestone has many uses. It is commonly known as a building material, but can also produce other substances such as glass, cement, and lime. Also when powdered, limestone can â¦ be used as a base to neutralize acid rain in lakes as well as acidic soils.3 people found this useful.imestone itself can be used as the foundation for road construction, and, like other types of stone, is used to construct stone buildings and stone walls. Lime and limestone are also used in many industrial and chemical processes.