6x^2 + 3xy - 2xy +y^2
6x^2 + xy + y^2
Answer:
Heat transfer, CO2, O2, water transfer.
Explanation:
Answer:
I say the correct answer is B. Perils.
The gods
i think hope this helps
Census = the fourth answer
Demography = the first answer
Carrying Capacity = the third answer
Population Density = the second answer
Hope this helps!