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C10: Quiz 2 – Answers
C10: Quiz 2 – Answers
1) The 4 main aspects are:
1)Extracting and processing of the raw materials
2)Manufacturing and packaging
3)Using the product
4)Disposing of the product
2)
a) It would be easy to place values on the following (any 2):
3) We would expect the LCAs produced to be different as the assessors will have made different assumptions for the product like how long it is used for or how it is disposed of. These different assumptions will lead to different impacts and therefore different values for the LCAs
4) We need to look at who wrote the LCA to make sure that there is no bias. (If a manufacturer did their own LCA, they could underestimate any negative effects of the product to make the LCA seem more favourable).
5) Any 2 from the following:
6)
a) Any 2 from:
1)Extracting and processing of the raw materials
2)Manufacturing and packaging
3)Using the product
4)Disposing of the product
2)
a) It would be easy to place values on the following (any 2):
- The amount of energy needed to make the car
- The amount of resources needed to make the car and the waste materials produced to obtain these resources
- The amount of waste produced when making the car
- The amount of water needed in the production process
- The amount of harmful gases (carbon dioxide, sulfur dioxide and nitrogen oxides) produced whilst the car is driven. This is because we do not know how many miles the car will be driven for
- We do not know how the car will be disposed of, so we cannot say for certain the effect that the disposal of the car will have on the envioronment. For example, if the car is recycled the effect is quite small, but if the car is dumped the effect is very high
3) We would expect the LCAs produced to be different as the assessors will have made different assumptions for the product like how long it is used for or how it is disposed of. These different assumptions will lead to different impacts and therefore different values for the LCAs
4) We need to look at who wrote the LCA to make sure that there is no bias. (If a manufacturer did their own LCA, they could underestimate any negative effects of the product to make the LCA seem more favourable).
5) Any 2 from the following:
- Does extracting the raw material scar the landscape?
- Is there a lot of waste produced during extracting and processing the raw material?
- How much energy is required to extract and process the raw material?
- Is the raw material finite/ will the raw material run out?
- Any more relevant points
6)
a) Any 2 from:
- The landfill sites require space and habitats will have to be destroyed to provide this space
- The products may pollute the surroundings when they are in a landfill site – for examples, batteries will contaminate the soil if they are sent to landfill, which can poison people, animals and the soil
- Energy is required to take these products to landfill – a diesel lorry taking the old products to landfill will emit pollution
Questions
When answering the questions in this quiz, try not to look at the later questions.
1) A life cycle assessment looks at the total impact that a product has on the envioronment during the whole course of its life. What are the 4 main aspects to a life cycle assessment?
2) I carry out an LCA on a car.
a) Give two examples of values that will be quite easy to quantify.
b) Give two examples of values that will be quite hard to quantify.
3) If two different assessors carried out LCAs for a product, would you expect their assessments to be the same? Explain why the LCAs would or would not be the same.
4) When looking at LCAs, why do we need to look at who wrote the LCA?
5) The first part in an LCA is the extracting and processing of the raw materials. Give 2 things that we need to consider in this section.
6)
a) Sometimes products are disposed of in landfill sites. Give 2 impacts of disposing of a product in a landfill site?
b) We can reduce the effects of disposing of products in landfill sites by doing two things beginning with R. What are these two things that we can do beginning with R?
When answering the questions in this quiz, try not to look at the later questions.
1) A life cycle assessment looks at the total impact that a product has on the envioronment during the whole course of its life. What are the 4 main aspects to a life cycle assessment?
2) I carry out an LCA on a car.
a) Give two examples of values that will be quite easy to quantify.
b) Give two examples of values that will be quite hard to quantify.
3) If two different assessors carried out LCAs for a product, would you expect their assessments to be the same? Explain why the LCAs would or would not be the same.
4) When looking at LCAs, why do we need to look at who wrote the LCA?
5) The first part in an LCA is the extracting and processing of the raw materials. Give 2 things that we need to consider in this section.
6)
a) Sometimes products are disposed of in landfill sites. Give 2 impacts of disposing of a product in a landfill site?
b) We can reduce the effects of disposing of products in landfill sites by doing two things beginning with R. What are these two things that we can do beginning with R?