I believe that sugar is a compound because there are elements that make up sugar
Billions of years ago, according to the theory of evolution, chemicals randomly organized themselves into a self-replicating molecule. This spark of life was the seed of every living thing we see today (as well as those we no longer see, like dinosaurs). That simplest life form, through the processes of mutation and natural selection, has been shaped into every living species on the planet.
Answer:
Gravity
because the earth which pulls any object towards it center and the velocity is achieved
It's because of the gravitational forces