How would an increase in nest sites affect a population of pigeons?
athe population would decrease.
bthe population would increase.
cthe population would remain almost the same.
dthe population would be reduced the next year.

The correct answer is B. If there was an increase in nest sites, the pigeon population would increase. This would of course be due to the greater amount of space in which the pigeons could breed and raise their offspring. Hopefully that's answered the question for you.

Alright, i'm gonna try to explain this as good as possible. the law of conservation is like a collection overtime. it never changes though. no matter how you change the constituent parts.