Odd number go north and south and even number go east and west.
Much pollution fills the air because of train s which let off steam that contains chemicals.
9 I think
If I am wrong sorry
Carrying capacity is the theoretical maximum rate of population growth. It is the maximum population size that the environment can sustain. This means that it is the maximum number of individuals of given species that the evironment's resources can sustain. It is the population size that can have enough water, food, habitat and other resources in order to survive and live.
