Question

an increase in human births leads to an increased population. more humans leads to an increase in births. this is an example of which of these? population control fertility rates a positive feedback loop

Explanation:

A positive feedback loop occurs when a change (increase in births) leads to a consequence (increased population) that further amplifies the initial change (more humans lead to more births). Population control involves reducing growth, and fertility rates are just a measure of births, not this cyclic amplification. So the example fits a positive feedback loop.

Answer:

C. a positive feedback loop