What kind of mirror is used in automobiles and trucks to give the driver a wider area and smaller image of traffic behind him.?​

Mirror used in automobile and trucks for wider area and smaller image is convex mirror.

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.