Which of these surface features are formed when the acid in groundwater reacts with limestone?

rivers and springs
sinkholes and caves
hot springs and geysers
wetlands and volcanoes

is it b pls help me

Right, again! :-)

YW :-)

Yes, you are correct. Sinkholes and caves are formed when the acid in groundwater reacts with limestone. These reactions gradually dissolve and erode the limestone bedrock over time, creating underground cavities and passages. Eventually, the ceiling of these cavities can collapse, resulting in the formation of sinkholes.

Yes, you are correct. Sinkholes and caves are formed when the acid in groundwater reacts with limestone.

To arrive at this answer, we can understand the process of limestone dissolution. Limestone is a type of sedimentary rock primarily composed of calcium carbonate. When groundwater containing acid (often carbonic acid) comes into contact with the limestone, a chemical reaction occurs. The acid dissolves the calcium carbonate, leading to the formation of cavities and underground channels.

Over time, as more limestone is eroded by the acid, the cavities increase in size, eventually resulting in the formation of sinkholes. Sinkholes are depressions or holes in the ground that occur when the underground voids caused by limestone dissolution collapse.

Likewise, as water flows through the dissolved limestone, it may carve out passages and chambers, leading to the creation of caves. These caves can vary in size and complexity and may eventually become visible on the surface as entrances or openings.

Therefore, in the given options, the surface features formed when acid in groundwater reacts with limestone are sinkholes and caves (option B).