well just to let you know ''HINT'' OPEC is oil.
Answer:
Family size might adversely affect the production of child quality within a family. ... Controlling for parental family income, parental age at birth and family level attributes, we find that children from larger families have lower levels of education and that there is in addition a separate negative birth order effect.
They are examples of hormones
The one that could affect human population would be :
A. Deadly virus emerges that can pass from human to human.
This will greatly decrease the amount of human population
C. Nuclear war breaks out between two nations
This will kill a lot of people and also potentially creating genetic mutations for the next generation
D. Immigration to united states from china increases
This will make it harder for the population to get the resources that they need for their living
hope this helps
