twenty books are placed at random in shelf find the probablity that aparticular pairs of books shall be always together and never together​

lifetime activities are certain actions that are either required throughout your life or you choose to do them. for example, eating is considered a lifetime activity, drinking water or other beverages, keeping your body clean, taking medicine. those types of actions are considered lifetime activities.

answer; (c); to assure that workers have the right to a safe workplace and that it is the employer's responsibility to provide safe and healthy workplace;

this is true. vitamins and minerals wounds heal and boost your immune system so you don’t get as sick.