NCERT Solutions for Chapter: Stars and the Solar System, Exercise 4: LONG ANSWER QUESTIONS

 Suppose the moon emits light of its own. Would it still have phases? Justify your answer.
 

Figure shows comets without their tail. Show the tails of the comets at position A, B, and C. In which position will the tail be longest?
 

Explain why we always see the same side of moon.

Look at the figure carefully and answer the following question:

In which part of the sky would you see the full moon? 

Look at  the figure carefully and answer the following question:

In which part of the sky would you see the crescent moon?

Write the names of all planets in the figure.

Suppose the distance between earth and sun becomes half of its present distance. What is likely to happen to life?

Explain with a diagram how you can locate pole star with the help of the constellation Great Bear (Ursa Major).