Students in Mr. Stovel's class were studying weathering erosion One group of students placed some limestone chips in a beaker Next they poured in 50ml of water to which they added 5 ml dilute HCI. After hours the limestone chips had almost disappeared and the water was cloudy. this simple experiment is an example of what process of earth.

Acidic ground water or preccipitation chemically reacts with limestone resulting in karst features.
Water physically erodes limestone and it is carried away by moving groundwater.
Acid rain falls on limestone rock and physically dissolves the particles in the rock.This is similar to dissolving salt in water.It occurs in places where evaorite form.
Acid rain falls over limestone rock and washes paerticles away. This is the result of the kinetic energy of the moving water and it it a physical process.

Acid rain falls over limestone rock and washes particles away. This is the result of the kinetic energy of the moving water and it is a physical process.