Answer:
A. More trees will be cleared from land.
C. More fossil fuels will be used for cars.
Explanation:
Considering the given scenario, the increase in the human population will definitely lead to several changes in the way the earth is utilized. So, if the human population is to increase, then more lands will have to be cleared for settlement and also lead to more fossil fuels to be used by them.
Out of the given options, the case of more lands cleared and increased usage of fossil fuels are two events that will likely happen. Increased formation of oxygen is not one that will be an effect of human population increase, for humans don't produce oxygen but rather plants do. And so, if more lands are cleared, then that'll mean lesser trees. Moreover, more fossil fuels will be used up by humans in their automobiles. And water consumption will also be increased as humans can’t survive without water.
Thus, the correct answers are options A and C.
