Answer will be b for question
1) The environment of nebulas attract the dust and gas together and forms the necessary components of a star.
2) It is created by comparing different stars by their luminosity and color.
There would be more prey than predators, as for a predator to have a balanced diet it should have a plentiful supply of food, meaning it needs more prey. You're welcome!
Hibernate because when they sleep they don't use any calories so thus,they can survive the winter without waking up for food. This is because also their metabolism slows down so much that it consumes little to no calories a hour keeping its vitals stable and not having to wake up to ''refuel" it's self.
