Answer:
The focal length of a lens is refers to the distance from the center of the lens to the principal foci.
Precisely around 1,800 miles below.
Answer:
The Short Answer: Sunlight reaches Earth's atmosphere and is scattered in all directions by all the gases and particles in the air. Blue light is scattered more than the other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time.
Explanation:
I would have to say B failed because I think I read something about it being only 2law not 3