Explanation:
A common way to clear icy roads is to apply a layer of salt, which lowers the freezing temperature of water and melts the ice.
Answer:
<u>B. Lithium, because it has two energy levels with one electron in the second level.</u>
Answer:
Lungs supply oxygen carried by blood to cells of the body. The cells which are responsible for the transportation of oxygen is hemoglobin. When oxygen rich hemoglobin reaches a cell so the oxygen is unloaded and carbondioxide which is produced as a waste product is loaded in hemoglobin. Again this hemoglobin goes to the lungs and dispose carbondioxide there and repeat the process again.