Question

Answer in brief.
1. What is light year? Mention its numerical value.
2. What do you understand by the term dwarf planet
3. Name any two outer and inner planets.
4. Write the importance of sun in the solar system.
5. What is Milky way galaxy? Why is it named it ?
6. what is electric current?

Answer 1

Explanation:

explanation a light year or light year symbol l y it is a unit of length equal to under just 10 trillions kilometres 10 into 10 ^ 15 it means 10 parameters aur about 6 trillion miles it is defined as astronomical Union