It uses its potential energy and converts it into kinetic energy as it falls (the lower it is during the fall it will be mostly kinetic, however the higher it is during the fall it will be mostly potential energy)
That is true. Active transport goes against the concentration gradient. Particles want to move from higher concentration to lower concentration and even out, but active transport makes them move against that.
The electrons needed by photosystem ii originate from water.
Answer:
The answer is by proving that gravity and inertia working together explained the motions of planets and their moons.
Explanation:
