The mass of a star can be determined by studying D) binary star systems.
Although there may be other ways to determine the mass of a star, this is the most common one which is widely used all over the world when it comes to measuring objects in the universe.
Its that food dropped on the ground is safe to eat and will not be covered in germs as long as its picked up within 5 seconds after its dropped.
Answer:
A
Explanation:
A. Tesla Motors, because he literally is the owner of Tesla
I believe that the answer is B. a fertilized egg splits in two but I could be wrong
