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Astrobiology Quiz
Difficulty level 5
1. Life on earth is based on,
  • Carbon
  • Oxygen
  • Nitrogen


2. Genetic information in cells are stored and passed on to the next generation through,
  • DNA
  • Enzymes
  • Proteins


3. Who was the famous scientists to conduct an experiment to simulate the conditions of primitive earth and demonstrate that amino acids, fatty acids and urea could be formed in nature?
  • Charles Darwin
  • Stanley Miller
  • James Watson


4. What are 'stromatolites'?
  • Fossil structures made by bacteria
  • Type of meteorites that contain amino acids
  • Primitive bacteria still found in deep sea beds


5. Apart from the earth, what is the most likely place to find life in our solar system?
  • Venus
  • Mars
  • Asteroids


6. A planet orbiting a small star cannot habour intelligent life because,
  • The star has a short life span
  • Planets will have unstable orbits
  • The life zone is too close to the star


7. Planets around a binary star system is not suitable for development of intelligent life because the planets,
  • Lie outside the life zone
  • Have unstable orbits
  • Do not form around binary stars


8. What is the definition of a life zone around a star?
  • Temperature range in which water can exist in liquid form
  • Area which can form an earth-size planet
  • Area between the orbits of venus and mars


9. What is the equation used to estimate the number of intelligent civilizations in our galaxy?
  • SETI equation
  • Carl Sagan equation
  • Drake equation


10. What is the name of the argument which suggests that the universe is 'fine-tuned' to our existance?
  • Anthropic principle
  • Olber's paradox
  • Harvey's paradox

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