Limestone is composed largely of the minerals calcite or aragonite. Some limestones do not consist of grains and are formed by the chemical precipitation of calcite or aragonite. This is how limestone can be classified as chemical.
Both are organs ur body cant live without thats why when ppl shoot they aim for the heart and/or brain they are vital organs
Janine is right because CONSUMING TOO MUCH PROTEINS AND NO CARBOHYDRATES WITH PUT MORE PRESSURE ON THE LIVER AND KIDNEY. LIVER AND KIDNEY WILL REQUIRE MORE ENERGY TO BREAKDOWN TOO MUCH PROTEINS. THUS KIDNEY MIGHT GET RUINED DUE TO TOO MUCH WORK.
Carbohydrates, proteins and fats are used as source of energy and converted into energy. Carbohydrates are first to be metabolized for the production of energy. It is readily broken down into simple form. Brain uses only carbohydrate in the form of glucose as energy source. Glucose is used as an immediate fuel.
Protein is used as a source of energy when the body lacks carbohydrates. If protein and carbohydrates are received by the body in sufficient amount, protein is used for other specific purposes. Protein is not reserved for later use and our body do not store protein. It acts as building blocks of body to maintain the proper functioning of the body.
Fats are the last source of energy and used as energy source only in the absence of carbohydrates and proteins. Energy is stored in the body in the form of fat in the adipose tissues for later use in the absence carbohydrates and proteins. This stored fat is broken down into energy during exercise.
