What are some ways that the nitrogen cycle overlaps with or influences the oxygen and carbon cycles? Are any of these interactions between the cycles positive? Are any negative? What about when the nitrogen cycle is thrown off balance by the Haber-Bosch process and others like it? How can that influence the oxygen and carbon cycles? Are there other cycles involved that have not been mentioned in this question? Finally, what does this discussion suggest about the nature of the Earth as one large system?

it's c. (to reduce the greenhouse effect/carbon gasses)

answer: decrease

a limiting factor is the one which decrease the abundance, distribution and causes extinction of the population of species in a ecosystem. here, predators including hawks, owls and snakes are the limiting factor for the population of mexican free tailed bat.   although bats are nocturnal animals as they forge for food at night these predators also may remain active during night which can decrease the population of the mexican free-tailed bats. also, these bats eat only one type of insects that are moths. the food can also be a limiting factor as all 400 members are dependent upon same type of food needs that are moths. the decrease in the moth population can cause decrease in population size of the mexican free-tailed bats.

therefore, the scenarios will most likely to decrease the population size of the mexican free-tailed bats.  

the answer is definitely a