Rivers KO Quiz

What is the process called when moisture falls from clouds as rain, snow, or hail?

• Interception

• Surface Runoff

• Precipitation

• Evaporation

Which type of erosion involves rocks being hurled at the base of a cliff to break pieces apart?

• Attrition

• Solution

• Abrasion

• Hydraulic Action

What is the term for the volume of water that flows in a river?

• River Discharge

• Surface Runoff

• Precipitation

• Interception

Which physical cause of flooding involves impermeable rocks increasing surface runoff into rivers?

• Prolong & heavy rainfall

• Geology

• Relief

• Land Use

What is the term for the process by which eroded material is carried/transported?

• Erosion

• Deposition

• Transportation

• Weathering

Which type of transportation involves boulders rolling along a river/sea bed by the force of the flowing water?

• Solution

• Suspension

• Saltation

• Traction

What is the term for the natural process by which the sea or river loses energy and drops the sand, rock particles, and pebbles it has been carrying?

• Erosion

• Deposition

• Transportation

• Weathering

What is the first step in the formation of a waterfall?

• River erodes soft rock faster creating a step

• River flows over alternative types of rock

• Further hydraulic action and abrasion form a plunge pool beneath

• Hard rock above is undercut leaving cap rock which collapses

Which type of engineering involves increasing the velocity of a river to remove flood water?

• Afforestation

• Straightening Channel

• Artificial Levees

• Natural Levees

What is the term for the delay between peak rainfall and peak discharge in a river?

• Peak discharge

• Rising limb

• Falling limb

• Lag time