The us and canadian governments are doing all of the following to combat environmental problems except
a.
encouraging the use of public transportation
b.
enacting clean water policies
c.
requiring emissions testing
d.
limiting animal populations in some regions

The US and Canadian governments are doing all of the following to combat environmental problems except Limiting animal population in some regions.

Option D

Explanation:

The United States along with Canada are known as the two countries having great powers and wealth. One of the major problems that every nation is facing is Environmental degradation. Whether it is air, water or land, bad effects due to human activities are observed everywhere. Both these countries have created various policies and laws to minimize the damages, some of the common fields in which they are making progress are:

Hence, we can say that option D is correct as limiting the animal population is not a solution to solve environmental problems.  

if the government does something the people dont like i tihnk threre would be a revolt