Science Facts Set-27

  • A human cell contains 23 pairs of chromosomes (46 chromosomes).
  • The SI unit of electrical resistance is ohm (Ω).
  • The density of Sodium is less than that of water. This is why sodium floats in water.
  • Proxima Centauri is the nearest star to the Sun.
  • Methane is also known as 'marsh gas'.
Methane and its Derivatives (Chemical Industries)
  • Silverfishes are actually wingless insects that belong to the order Thysanura.
  • The phenomenon of natural radioactivity was discovered by Henry Becquerel.
  • The bile is a fluid secreted by liver in many vertebrates. It helps in the process of digestion of lipids in the small intestine.
  • Phylogeny is the science of ancestral history.
  • About 350,000 extant species of plants have been identified on Earth.
Plants and Society

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