Question

Which option identifies what Steven should use during the process in the following scenario and correctly

explains why?
Steven is conducting a life cycle inventory of all of the energy and raw materials used in every stage of the
production of an eco-friendly home. It is important that this is done correctly since the impact analysis
evaluates the effects of the product on the environment, and also on human health, based upon the product's
energy and raw material input and output.
Exact numbers should be used so that calculations can be as precise as possible.
O Estimated numbers should be used so that calculations can be as variable as possible.
O Estimated numbers should be used so that calculations can be as simple as possible.
Exact numbers should be used, but calculations can be rounded to the nearest estimate.

Answer 1

The option that identifies what Steven should use during the process in the given scenario and correctly explains why is:

Exact numbers should be used so that calculations can be as precise as possible.

The reason for using exact numbers is that Steven is conducting a life cycle inventory of all of the energy and raw materials used in every stage of the production of an eco-friendly home. To accurately evaluate the impact of the product on the environment and human health, it is important to have precise data on the energy and raw material input and output. Using estimated numbers or rounding calculations to the nearest estimate can introduce errors and inaccuracies in the analysis, making it less reliable. Therefore, using exact numbers will ensure that the calculations are as precise as possible, and will lead to more accurate and reliable results.