V Shaped Valley

What is HYDRAULIC ACTION in the context of river erosion?

• When bubbles of air are forced into cracks, shattering the rock

• When rocks and pebbles hit each other, breaking into smaller pieces

• When water dissolves minerals from rocks

• When rocks carried by water wear the land away

What does ABRASION refer to in river processes?

• The wearing away of land by rocks carried in the water

• The dissolving of minerals from rocks by water

• The wearing down of rocks by bubbles of air

• The transport of eroded material downstream

What is SOLUTION in the context of river erosion?

• The formation of interlocking spurs due to erosion

• The action of air bubbles shattering rocks

• The process where water dissolves minerals from rocks

• The breaking of rocks into smaller, rounded pieces

What results from the process of ATTRITION?

• Deepening of the valley by dissolving minerals

• Air bubbles forcing into rock cracks

• Rocks and pebbles becoming smaller and more rounded

• Formation of a V-shaped valley

What geological feature forms in the upper course of a river basin due to vertical erosion?

• A steep sided V-shaped valley

• Wide river mouths

• Interlocking spurs

• Flat river banks