Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all of the planets in orbit around the sun. i know this because that’s what it says in the story
Twilight series I believe is what your looking for, although I asked my son what that stupid movie about the vampires was and he said Transyvania lol, but the answer you want is Twilight.
Answer:
fiction
Explanation:
fiction that's the right answer
because, it is easier to use plants or things of that type other than using human trials which can be lethal if done wrong.
