Well... if the predator would become extinct, the population of the hunted will grow and reproduce. There for it would increase.
I would say C! Most developing countries have high birth and death rates, while developed countries are more steady.
Answer:
rain is very important for life in certain areas, this is why you see little life in deserts and even they need rain occasionally. more rain will lead to more life, first, it will be the plants that move in, then once they grow, vegetation eaters will move in, then after that meat-eaters will move in to eat those creatures and the ecosystem will flourish.
