5. Resources and Energy

Life Cycle Analysis — Quiz

Test your understanding of life cycle analysis with 5 practice questions.

Practice Questions

Question 1

Which of the following BEST distinguishes attributional LCA from consequential LCA?

Question 2

In a LCIA, if the global warming impact is 100 kg CO$_2$-eq with a weighting factor of 0.4, and the eutrophication impact is 10 kg PO$_4$-eq with a weighting factor of 0.6, what is the total weighted impact score?

Question 3

What is the primary purpose of performing sensitivity analysis during the interpretation phase of an LCA?

Question 4

According to ISO 14044, which approach is generally preferred to address multi-functionality in LCA?

Question 5

In LCA normalization, given a global reference flow of 1 000 000 kg CO$_2$-eq, a product’s GWP of 500 kg CO$_2$-eq yields what normalized impact?