Oil and natural gas eventually reached layers of rock through which they could not pass called . Multiple choice question.

A)
deep rock

B)
permeable rock

C)
impermeable rock

D)
cement

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