Using the earths resources

• What should you be able to do by the end of the video?

  Give examples of how humans use resources
• What is the difference between finite and renewable resources?

  Finite resources cannot be quickly replaced
• How does modern agriculture help meet the world's needs for cotton?

  It allows us to grow enough cotton
• How are trees used in relation to earth's resources?

  They can be used for timber or fuel
• What type of fuel do many power stations run on now?

  Biofuels such as wood chips
• What has chemistry replaced natural resources with?

  Synthetic alternatives
• Where does natural rubber come from?

  The sap of a tree
• What percentage of rubber used globally is synthetic?

  About two-thirds
• What does it mean for a resource to be finite?

  It cannot be replaced quickly
• Why are fossil fuels considered finite resources?

  They form much slower than they are used
• How are renewable resources characterized?

  They can be replaced as quickly as used
• What does it mean for human activities to be sustainable?

  Meet needs without harming future generations
• How does chemistry contribute to resource use?

  It helps grow more food and provides safe water
• What are two processes that help extract metals more efficiently?

  Phyto mining and bio leaching
• What are the roles of artificial fertilizers in agriculture?

  • Increase food production
  • Utilize available land more effectively
• What are the implications of using finite versus renewable resources?

  Finite resources:

  • Limited availability
  • Risk of depletion

  
  

  Renewable resources:

  • Sustainable use
  • Continuous availability
• What are the key concepts related to sustainable human activities?

  • Meeting current needs
  • Ensuring future generations can meet their needs
  • Utilizing resources efficiently