It's A. I don't know why, but I got it right, so
The O stars is the most luminous, then B, then A, F, G, K, and M stars are the least luminous_____ there must be a relationship between mass and luminosity.
The correct option is A. Mesoscale convective system of storm is a collection of storms that act as a system. This type of storm can cover a whole state and can last for more than twelve hours. It is the largest type of storm.
Answer:
option a because the industrial revolution created more inventions making factories work faster and more efficiently.