Exercise q/answer notes

Written by: Khalid khan

Composed by: adnan basher

Qno1: How is that a star seldom finds another star near it?

Ans: A star seldom finds another star near it because they are stretched far and wide. The universe is very large. One star is million miles away from another. So there is no possibility that a star can come near another and collide.

QNo2: What happened when, according to Sir James, a wandering star, wandering through space, came near the sun?

Ans: When the star came near to the sun due to the pull, a huge tidal mountain raised on the surface of the sun, the star came nearer and nearer and the tides became bigger and bigger.

QNo3: What happened when the wandering star came nearer and nearer?

Ans: When the wandering star came nearer and nearer, the tides on the surface of the sun, and the tides became a huge mountain.

               

       QNo4:  What are the planets and how they          came into existence?

        Ans: Planets are those pieces of the sun which were thrown into pieces when the mountain on the surface broke into pieces as the other star moved away from the sun.

QNo5: Why there is no life on stars?

Ans: There is no life on the stars because they are collection of fire. They are so hot that the temperature is in thousand degrees and nothing can survive there.

QNo6: Write a note on the beginning of life on the earth?

 Ans: Life on the earth began in form of very small and simple organisms which could survive in high temperature and they had ability to reproduce off springs.

QNo7: Why is the universe, of which our earth is a part, so frightening? Give as many reasons as you can.

Ans: The universe is so frightening because in this universe life exists only on the earth. Human beings are alone. The earth is a very small place as compared to the huge stars. We are alone in this universe.

QNo8: What, in your opinion, should be the condition necessary, for the kind of life we know to exist on the other heavenly bodies? Do such conditions generally exist?

Ans: For the life to exist, temperature must be moderate, so that liquid remains liquid. Other Physical conditions like climate etc are also necessary. Such conditions exist only on the earth.