One state you can find sinkholes is Florida

One state you can find sinkholes is Florida Sinkhole’s Sinkholes form when 2 events happen 1 would be underground water and limestone or overburden falls into a gap.

Caves form when underground erosion occurs. You can find caves in Indiana.

Oxbow Lake Oxbow lakes usually form in flat, low-lying plains close to where the river empties into another body of water. On these plains, rivers often have wide meanders. You can found Oxbow Lakes in Australia

Alluvial Fan Alluvial fan is a fan shaped sediment deposit that forms on dry land. You can find these in America Southwest

Drumlins are formed of till. They are elongated features that can reach a kilometer or more in length, 500 m or so in width and over 50 m in height. One end is quite step, whilst the other end tapers away to ground level. The Stoss end is the steeper of the two ends and used to face into the ice flow

Erratics A glacial erratic is a piece of rock that differs from the size and type of rock native to the area in which it rests. "Erratics" take their name from the Latin word errare, and are carried by glacial ice, often over distances of hundreds of kilometres. Erratics can range in size from pebbles to large boulders such as Big Rock (15, 000 metric tons / 17, 000 short tons) in Alberta.

Kettle Lake Kettles are depressions left behind after partially-buried ice blocks melt. Many are filled with water, and are then called "kettle lakes. You can find these in Michigan

Karst Topography It’s a type of irregular land that forms on limestone by sinkholes and streams that disappear underground. You can find these in China.

Alpine Glacier Alpine glaciers form on mountainsides and move downward through valleys. Sometimes, alpine glaciers create or deepen valleys by pushing dirt, soil, and other materials out of their way. Alpine glaciers are found in high mountains of every continent

Continental Glacier Continental glaciers form at high latitudes where temperatures remain cold enough during the summer to keep the previous winter's snow from melting allowing snow and ice to accumulate. You can find them in Arctic or Antarctic

Cirque A steep bowl-shaped hollow occurring at the upper end of a mountain valley, especially one forming the head of a glacier or stream. You can find them in Washington

Hanging valley A tributary valley that joins a main valley where the latter has been deepened, usually by glacial erosion, resulting in a steep drop from the floor of the tributary valley to the floor of the main valley. You can find them in Europe.

U-shaped valley A U-shaped valley is the shape left after a valley has been overdeepened by a glacier. The original V-shaped valley, which would have been made by a river, is widened and deepened after the ice has eroded the sides and bottom of the valley. V-shaped valleys have a wide flat floor, which may contain ribbon lakes (long and narrow) and mis-fit streams (so called because they are too small to have made the valley). you can find them in Europe

V-shaped valley An elongated lowland between ranges of mountains, hills, or other uplands, often having a river or stream running along the bottom. You can find them in Europe