Question

a rainforest in south america has experienced unusually high temperatures caused by pollution and climate change. over time, the population of many native birds has decreased. which type of factor contributed to the decline in these bird populations?
abiotic factor of increased light sources
biotic factor of increased competition for resources
abiotic factor of increased temperature
biotic factor of decreased reproduction rate

Explanation:

Abiotic factors are non - living components. Temperature is an abiotic factor. The problem states that unusually high temperatures (an abiotic factor) due to pollution and climate change caused the decline in bird populations. Option A (increased light sources) is not mentioned. Biotic factors (options B and D) involve living organisms (e.g., competition between organisms, reproduction rates of the birds themselves), but the cause here is the non - living factor of temperature increase.

Answer:

C. abiotic factor of increased temperature