Which abiotic factor in an ecosystem helps to control population size? A. plant growth
B. plenty of sunlight
C. species of animals
D. availability of space

The correct answer is - B. plenty of sunlight

Explanation:

Abiotic factor in an ecosystem is a factor that shapes its environment such as temperature, water, sunlight, and many more factors in a terrestrial ecosystem.

The ecosystem abiotic factors affect the population size in the ecosystem. Among the options sunlight that affects the whole ecosytem included herbivore, carnivore and many other aspects.

significant amounts of nitrogen oxides, carbon monoxide, and other pollution

explanation:

passenger vehicles are a major pollution contributor, producing significant amounts of nitrogen oxides, carbon monoxide, and other pollution. in 2013, transportation contributed more than half of the carbon monoxide and nitrogen oxides, and almost a quarter of the hydrocarbons emitted into our air.

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.