Biological Factors to sustain life

• The earth is 4.543 billion years old
• Temperature - controls how quickly atoms, molecules, or organisms movement
• Low Temperature - slows down chemical reaction
• High Temperature - breaks down biological molecules
• Goldilocks' zone - The temperature here is just right
• Water - the most important factor in biological process
• Atmosphere - acts like a blanket that protects us from the sun and small to medium meteorites
• Examples of Greenhouse gasses that traps the heat are carbon dioxide(cO2) and methane(cH4)
• Ozone layer(O3) - protects us from uv radiation
• Photosynthetic organisms - use light to manufacture their own food
• chemosynthetic organisms - organisms that obtain energy from chemical reactions
• Nutrients - It helps build and maintain organisms body structure
• Volcanism - helps in cycling nutrients
• Synthesis of bodily molecule - caused by insufficient nutrients
• Example of Nutrients

  • Water
  • Carbon
  • Oxygen
• Factors that sustains life on earth

  • Temperature
  • Water
  • Atmosphere
  • Energy
  • Nutrients
• Planetary habitability - the ability of a planet to support life.