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.
Report Abuse. Limestone is plentiful on the surface of the earth and quite useful. Other benefits of quarrying are the possibilities of using the quarry as a water reservoir/recreation area if it is safe enough and in other cases where the water table is very low the quarry could be used for landfill purposes.eport Abuse. Limestone is plentiful on the surface of the earth and quite useful. Other benefits of quarrying are the possibilities of using the quarry as a water reservoir/recreation area if it is safe enough and in other cases where the water table is very low the quarry could be used for landfill purposes.