Scissors change the magnitude or direction of a force without any motor.
The Answer is D. Tidal power because the waves created from the bottom of the ocean floor, the wave's never stop coming .
Yes, it is due to the presence of our diet. Meaning a persons digestive system can function non properly if using a different diet or if you have a poor diet, or a diet that does not fit to your body’s standard. So yes a persons digestive system is based on your diet.