Question 1 – Obtaining and using metals - Questions

An environmental analyst is performing a Life Cycle Assessment (LCA) on copper piping used in domestic central heating systems.

The four key stages of this specific product's life cycle are described below out of order:

P Transporting decommissioned plumbing systems to a smelting facility for secondary recovery or sending them to a landfill.
Q Excavating chalcopyrite ore from an open-pit mine and concentrating it via froth flotation.
R Installing the pipe in a residential heating system and periodically flushing it to prevent scale buildup.
S Melting copper billets, extruding them into hollow tubes, and wrapping them in protective plastic sleeves.

List the stages of this life cycle assessment in the correct chronological order from start to finish. Use the letters P, Q, R, S.

An environmental analyst is performing a Life Cycle Assessment (LCA) on copper piping used in domestic central heating systems.

The four key stages of this specific product's life cycle are described below out of order:

P Transporting decommissioned plumbing systems to a smelting facility for secondary recovery or sending them to a landfill.
Q Excavating chalcopyrite ore from an open-pit mine and concentrating it via froth flotation.
R Installing the pipe in a residential heating system and periodically flushing it to prevent scale buildup.
S Melting copper billets, extruding them into hollow tubes, and wrapping them in protective plastic sleeves.

List the stages of this life cycle assessment in the correct chronological order from start to finish. Use the letters P, Q, R, S.

Obtaining and using metals Questions