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Science & NatureSunday 11 October 2026

Five questions from this round. The correct answer is marked ✓.

1. What is the smallest unit of life that can function independently?

  • Atom
  • Molecule
  • ✓ Cell
  • Organelle

2. Which gas makes up approximately 78% of Earth's atmosphere?

  • Oxygen
  • ✓ Nitrogen
  • Carbon dioxide
  • Argon

3. What is the process by which plants convert sunlight into chemical energy?

  • Respiration
  • Fermentation
  • ✓ Photosynthesis
  • Transpiration

4. In the water cycle, what is the term for water turning directly from ice to vapor without becoming liquid?

  • Condensation
  • ✓ Sublimation
  • Evaporation
  • Precipitation

5. Which scientist formulated the theory of evolution by natural selection?

  • Isaac Newton
  • Marie Curie
  • ✓ Charles Darwin
  • Stephen Hawking
← Newer
What is the powerhouse of the cell, responsible for producing energy?

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