Question

Graham makes sure that all recyclable products in his house are properly sorted and placed into pick-up bins every week. In addition to recycling, to further help his community, Graham could also do all of the following EXCEPT
A. buy items which are made with already recycled materials
B. choose to purchase products which are not over-packaged
C. switch from disposable water bottles to reusable ones
D. use bleach and ammonia as cleaners whenever possible​​​

Answer 1

. increase the opportunity cost of making an economic decision.