can you please explain this question better?
No the Milky Way galaxy has not merged with any other galaxy
I believe the correct answer is: The theory of universal
gravitation.
The famous anecdote of an apple falling from a tree and
striking the head of the young Sir Isaac Newton which stroke the great idea,
helped him come up with The theory of universal gravitation, as a concept and
ever present force.
Answer:
The older male astronaut welcomes the female trainees.
Explanation
As written "The older male astronaut welcome the female trainees" the word welcome is being used as a verb and is impropley conjugated.
I - welcome
You- welcome
He/She/It- welcomes
We- welcome
They- welcome