The answer is A. Carbon dioxide dissolving into clouds and forming acid rain
There are three slopes in a survivorship curve, which indicates the average life expectancy of a population.
Type I<span> or convex curves in which few offsprings are produced, but they are cared well and get matured and survive.
</span>Type II or diagonal curves where al almost constant rate of birth or mortality is observed.
Type III or convex curves where high mortality is observed in early life, but the aged population has a high survival rate.
Answer:
I don't know if this is correct, but a possible answer is that they provide each other by a food chain.
Explanation:
1. Lungs exhaling quicker to remove carbon dioxide
2. Exercising
3. Human's internal body temperature