Solar power is the answer
Without reabsorption in the nephrons are blood would be too thick. Nutrients such as vitamins and minerals will not be reabsorbed into the blood but will be lost in the urine.
In How to Kill a Mockingbird, Atticus warns them not to kill a mockingbird, because it doesn't harm anybody. Boo Radley could be considered the mockingbird, because although he is away by himself and harming nobody, the children mock and disturb him.
True, The Sun's gravitational force is like the tetherball rope, in that it constantly pulls Earth toward it. Earth, however, like the tetherball, is traveling forward at a high rate of speed, which balances the gravitational effect