1. Our earth came into existence about?

2. Believers of theory of spontaneous generation assumed that?

3. Life originated with the creation of universe and it reached the earth from Sun part of universe is the central idea of?

4. Universe or cosmos began as a dense, red hot, gaseous cloud about?

5. Origin of life is now due to?

6. "Ylem" is term also use for?

7. Which of the following is likely to have been absent in free form at the time of origin of life?

8. Solar System originated about 4.5-5 billion years ago according to the theory proposed by?

9. The most recent branch of taxonomy is known as?

10. Originally the primitive atmosphere was reducing because?