Tailings is the right answer.
Not always because there could be birth defects, mutations, or other variables.
Essential services, such as water purification, nutrient cycling, and plant pollination are all examples of earth's Ecosystem services.
The ecosystem is defined as the interaction between the biological communities with its physical environment. The services provided by the ecosystem are termed as ecosystem services. The ecosystem with the help of its different components performs water filtration, recycling of the nutrients, pollination, seed dispersal etc. These all services provided by the ecosystem comes under the category of ecosystem services.
Acids correspond to volatile molecules that release positive hydrogen ions. These ions have a profound effect on the other molecules in foods. Also, they can affect the cells in your body, fortunately, our taste buds help us regulate the number of free hydrogen ions we eat by making us perceive acids as sour tasting.