What is one of the five problems that the Pristine Seas Project seek to address? plz answer if you know it thank you

Why are there different theories about the effects of global warming

What’s the student’s scientific question

Which statement correctly describes other ways in which nebulae and stars are different? a. a star always has a higher density than a nebula. b. stars can form inside a nebula but a nebula can never be produced by any star. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star. reset submit