Politicians can gain added support for themselves by approving what?

a) public goods

b)regressive taxation

c) environmental-protection laws

d) pork barrel projects

D

Explanation:

Pork barrel project are projects used to gather money from government for a particular district or local community. This could be a move by politicians to get support from their immediate community.

answer: a. the kind of population living in your neighbourhood.

the census explorer data tool by the us census bureau allows the user to zoom in on any neighbourhood within the united states and find the kind of people residing in that by race and age.  

the tool needs to needs to be used twice – once in order to find what type of people reside in a neighbourhood, and then to see the age groups of the people in the same neighbourhood.

answermarginal cost;