Answer - Ground water erosion is a type of carbonic acidic water. That goes into the holes thru the soil and pretty much cracks thru rocks.
Answer:
Predators are an important part of a healthy ecosystem. Predators remove vulnerable prey, such as the old, injured, sick, or very young, leaving more food for the survival and success of healthy prey animals. Also, by controlling the size of prey populations, predators help slow down the spread of disease.
Answer: ACID
Explanation:on the Ph scale their is acids and bass' the loewer the Ph is hte higher the acid will be
Because the gravity of the sun keeps all planets in their orbits :3 hope I helped