C10 - using resources

• What is the main topic discussed in the material?

  Pollution and resource sustainability
• What are the two types of resources mentioned?

  Finite and renewable resources
• What happens to finite resources over time?

  They will eventually run out
• How can charts and graphs be useful?

  They provide insights into resource usage
• What risks are associated with extracting finite resources?

  It can cause environmental damage
• What is sustainability in resource use?

  • Development that meets current needs
  • Does not harm future generations
• Why is it undesirable to waste resources?

  Because all resources are renewable
• How can one reduce the use of finite resources?

  By recycling them
• What does recycling reduce besides resource use?

  Energy needed for production
• What is a challenge of stopping the use of finite resources?

  Environmental damage may occur
• What is the status of copper as a resource?

  Copper is a finite resource
• How can sustainability of copper be improved?

  By extracting it from less damaging sources
• What is a disadvantage of new copper extraction methods?

  They are slower than traditional methods
• What is the energy requirement for mining metals?

  It takes lots of energy
• How does recycling metals compare to mining?

  It uses much less energy
• What does recycling metals help reduce?

  The amount of waste produced
• How does the separation of metals affect recycling?

  It can change based on future use
• What is the benefit of recycling glass?

  It reduces energy needed for new products
• How is glass prepared for recycling?

  It is crushed and cleaned
• Why is glass separated by color and composition?

  To improve recycling efficiency
• What is one alternative use for recycled glass?

  Glass wool for insulation
• What are the benefits of recycling?

  • Saves limited raw materials
  • Saves energy
  • Reduces waste
• What do Life Cycle Assessments show?

  Total environmental costs of products
• What can Life Cycle Assessments compare?

  Plastic and paper bags
• What is a problem with Life Cycle Assessments?

  They can be complex and misleading
• What are the steps involved in a Life Cycle Assessment?

  1. Raw material extraction
  2. Manufacturing
  3. Distribution
  4. Use
  5. Disposal
• What is the first step in the life cycle of a product?

  Extract and process raw materials
• What does VSP stand for in product life cycle?

  Value Stream Process
• What is the significance of greenhouse gases in a product's life cycle?

  They exist over the full life cycle
• What is the process of electrolytic extraction?

  Using electricity to extract metals
• What is phytomining?

  Using plants to absorb metal compounds
• What is bioleaching?

  Using bacteria to extract metals from ores
• What is the purpose of recycling raw materials?

  To lower the need for non-renewable resources
• What are the three Rs in waste management?

  • Reduce
  • Reuse
  • Recycle
• What is tensile strength?

  Resistance to stretching force
• What is compressive strength?

  Resistance to squashing force
• Why are pure metals not very strong?

  They lack the structure of alloys
• What is stiffness in materials?

  Resistance to bending when force is applied
• What is the hardest material?

  Diamond
• What characterizes brittle materials?

  They break when hit by sudden force