Stars are celestial objects that have the ability to generate their own light. There are billions of stars present in the galaxy.
Stars are celestial objects that have the ability to generate their own light. They're 20to 40 km in diameter . They are primarily hydrogen gas with a small amount of helium.
The sun is also a star, and its energy and light play a crucial part in the survival of all kinds of life on Earth.
Hence option 4 is correct . Stars are billion in numbers in the galaxy.
To learn more about the stars refer to the link;
https://brainly.com/question/11624159
