What is the key criteria of sustainable development?

• It prioritizes short-term gains over long-term sustainability.

• It allows for unlimited use of resources.

• It focuses solely on the economic growth of current generations.

• It meets the needs of current generations without harming future ones.

Why is making products out of wood potentially more sustainable than making them out of plastic?

• We can grow more trees, but plastic comes from crude oil, a finite resource.

• Plastic is easier to recycle than wood.

• Wood is cheaper than plastic.

• Wood products are always more durable than plastic ones.

What role do chemists play in sustainable manufacturing?

• They advocate for the use of more crude oil in production.

• They increase the energy required for manufacturing processes.

• They solely focus on creating new plastic materials.

• They make processes more efficient and reduce energy requirements.

What is the most sustainable thing to do with a product once we've finished using it?

• Burn it for energy.

• Reuse or recycle it.

• Bury it underground.

• Throw it away immediately.

How can glass be recycled?

• By being used as a fuel source.

• By being left in landfills to decompose.

• By being dissolved in water.

• By being crushed and melted to form new products.

What is a necessary step before recycling metals?

• Burning them to remove impurities.

• Separating them into different elements.

• Freezing them to make them easier to transport.

• Painting them to indicate their type.

Why is it sometimes possible to add scrap steel to pure iron in steel production?

• Because it makes the process more expensive.

• Because it reduces the amount of pure iron needed from the ground.

• Because it makes the steel lighter.

• Because it enhances the color of the steel.

What does reusing an item mean?

• Sending it to another country.

• Converting it into a liquid form.

• Destroying it immediately after use.

• Using it for the same or a different purpose again.