Reducing Use of Resources Flashcards

All 5 cards in this deck

Name the three ways end users can reduce the use of limited resources.

Reduction in use, reuse and recycling.
These also reduce use of energy sources, waste and environmental impacts.

True or false? Metals, glass, clay ceramics and most plastics are all produced from limited raw materials.

True.
Much of the energy for these processes also comes from limited resources.

What are the steps to recycle a used glass bottle into a different glass product?
e.g. a used glass bottle made into a glass jar

1. Collect and crush the glass into small pieces.
2. Melt the crushed glass.
3. Mould or reshape the molten glass into the new product — e.g. a glass jar.
   (Some glass bottles can simply be washed and reused instead.)

Why is scrap steel added to iron from a blast furnace?

It reduces the amount of iron that has to be extracted from iron ore.

Give three reasons why recycling scrap copper is more sustainable than extracting copper from copper ore.

It conserves copper ore (a finite resource), uses less energy and produces less waste.
Mining and quarrying the ore also cause environmental impacts.