Task 2.1. Answer the questions:

1. How do we understand the meaning of “to provide authentic explanation” to something?
2. What is the difference in age of the most distant galaxies ever observed and our Galaxy?
3. Why do panspermia appears to provide the most favored hypothesis for emergence of life?
4. What is the age of the Solar system?
5. What was the result of heavy meteoric bombardment on early Earth?
6. What natural process gave rise to the oceans within about 750 million years?
7. When has life on Earth emerged?
8. What were the principal prebiotic atmospheric compounds?
9. What was the role of volcanic activity in the origin of life on Earth?
10. What is the origin of the ozone layer?