Waterfall and Meander Formation Quiz

Where does erosion primarily occur in a meander?

• On the inside bend

• At the river source

• On the outside bend

• At the river mouth

What happens to the overhang of hard rock in a waterfall formation?

• It becomes a sedimentary layer

• It collapses due to gravity

• It forms a new river channel

• It turns into a sand dune

Which process is responsible for the erosion of soft rock in waterfall formation?

• Chemical weathering

• Hydraulic action

• Biological weathering

• Frost wedging

What is the term for the motion that moves eroded material from one meander to the next?

• Vertical flow

• Helicoidal flow

• Horizontal flow

• Circular flow

What feature is created as a result of the undercutting of soft rock in a waterfall?

• A river beach

• A plunge pool

• A delta

• A levee

What is the primary cause of differential erosion in the formation of a waterfall?

• The presence of vegetation

• The varying resistance of rock types

• The temperature of the water

• The width of the river

What causes the formation of pools and riffles in a river?

• Uniform riverbed composition

• Disruption by obstacles like boulders

• Constant river velocity

• Absence of sediment

What is the result of the collapse of the hard rock overhang in a waterfall?

• Formation of a new waterfall

• Creation of a river cliff

• Deepening of the plunge pool

• Formation of a meander