Understanding River Systems

What is the starting point of a river called?

• Source

• Estuary

• Mouth

• Confluence

Which term describes where two or more rivers meet?

• Source

• Tributary

• Confluence

• Mouth

What is a tributary?

• A river that flows into a larger river

• The end of a river

• The edge of a drainage basin

• A tidal part of the river

What is the term for the area of land drained by a river and its tributaries?

• Drainage Basin

• Estuary

• Mouth

• Watershed

What is the edge of a drainage basin called?

• Source

• Watershed

• Confluence

• Estuary

Which process involves rocks hitting each other and breaking down further?

• Abrasion

• Solution

• Hydraulic action

• Attrition

What is the term for the power of water breaking rock away?

• Attrition

• Abrasion

• Hydraulic action

• Solution

Which process involves dissolved rocks being carried in a solution?

• Solution

• Suspension

• Saltation

• Traction

What is the term for the area of the riverbed and bank that comes into contact with water?

• Wetted perimeter

• Confluence

• Tributary

• Estuary

Which drainage pattern forms when rivers flow in many directions away from an upland area?

• Deranged

• Radial

• Parallel

• Trellis