Laplace's nebular hypothesis was problematic in that he could not ...

[imowrer]

Laplace's nebular hypothesis was problematic in that he could not explain ____.
 
  a. the different types of planets
 b. the rotational direction of the planets
 c. how the Sun had <0.5 of the Solar System's angular momentum
  d. how one star could come within a close encounter of another star
  e. how gravity was the dominant force of planet formation

Question 2

On the H-R diagram, 90 percent of all stars are ____.
 
  a. either giant or supergiant stars
  b. white dwarfs
 c. main sequence stars
 d. sred dwarfs
 e. binary stars

[Jossy]

Answer to Question 1

c

Answer to Question 2

c

[imowrer]

Thanks

[Jossy]

Welcome