Which sentence describes an example of a positive feedback loop?
A: Warm blooded animals were when they get too hot. Sweating as a method by which the body close itself.
B: A thermostat regulates. Temperature by turning a furnace or air conditioner on and off.
C: When blood flows from a mild cut, blood clots form to prevent excessive bleeding.
D: As oceans get hotter, they release more CO2, which then increases atmospheric and ocean temperatures.
