Final answer:
Cave formation is a true ongoing process influenced by the chemistry of groundwater interacting with limestone, resulting in stalactite and stalagmite growth despite constant water inflow.
Step-by-step explanation:
1) True. Cave formation can indeed continue in an area even if there is a constant inflow of groundwater. The process of cave formation includes the dissolution of limestone (CaCO3) by acidic solutions formed when groundwater containing atmospheric CO2 dissolves the rock. This can happen over thousands of years, and even with continuous groundwater inflow, the formation of stalactites and stalagmites can occur as water depositing CaCO3 evaporates, precipitating these minerals to form these structures within caves.
Groundwater is an essential reserve of fresh water and plays a significant role in shaping geological structures like caves. The chemistry behind cave formation is a prime example of how geological phenomena continue over vast periods, regardless of the constant movement of groundwater.