(i) Yes. If housing prices drop for those who live near an incinerator, those who move farther away will pay a higher cost. (ii) log(dist) is positively connected with housing quality if the city decided to place the incinerator in an area away from more expensive neighborhoods. This would violate SLR.4, and OLS estimation is biased. (iii)There are a variety of elements that contribute to a home's value, including size of the house, number of bathrooms, size of the lot, age of the home, and quality of the neighborhood (including school quality). They might be related to dist [and log(dist)], as was described in section (ii).