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.
I believe it will be 200,000 years
HCL is guilty for triggering the release of enzymes such as pepsin which are essential for the digestion of protein. Bile contains bile acids, which are critical for digestion and absorption of fats and fat-soluble vitamins in the small intestine.