Which term means the planting of trees?

• Afforestation

• Aforestation

• Afforresation

• Aforrestation

The quantity of water in a river (measured by recording how much passes a given point per second) is called the...

• Discharge

• Velocity

• Gradient

• Flocculation

This term means deepening a river by removing sediment from the river bed:

• Dredging

• Afforestation

• Embankment

• Levee

The time between the peak rainfall and peak discharge on a hydrograph is called the...

• lag time

• lead time

• lurch time

• lumos time

Rainfall which happens before a flood event, saturating the ground is called

• Antisedent

• Antecedent

• Anticendent

• Antesedent

Another name for overland flow

• Surface runoff

• Throughflow

• Interception

• Groundwater flow

Another name for the falling limb of a hydrograph is the:

• Rising limb

• Recessional limb

• Declining limb

• Dropping limb

Which one is NOT a type of hard engineering?

• Dams

• Dredging

• Sluice gates

• Wetland maintenance

The normal flow rate of a river is shown as the ... on a hydrograph

• Peak flow

• Baseflow

• Flash flow

• Lag flow

Which word means a hydrograph showing a river likely to flood?

• Flashy

• Flat

• Snappy

• Speedy