Answer:
D
Explanation:
D is your right answer ;)
It makes the Earth livable for us creatures. We get protected from the Sun's harmful rays reaching to Earth, which makes Earth feel comfortable. Atmosphere also contains Oxygen and we rely on that everyday.
ATP production would be stimulated. Positive feedback basically just enhances an original stimuli, so for example, blood clotting usually occurs at a lower rate. But when there is an injury, that blood clotting stimuli is enhanced to keep producing a large clot to make sure the wound is covered.
Turtle nest can be destroyed or exposed where they could be poached or eaten by local wildlife