what is hydraulic power?

what is corrosion?

what is corrasion/abrasion?

what is attrition?

what is transportation?

what is traction?

what is saltation?

what is suspension?

what is solution?

what is a waterfall?

how are gorges formed?

what is a meander?

what is a ox-bow lake?

what are levees?

what are the causes of flooding?

prevention of flooding
(hard engineering)

prevention of flooding
(soft engineering)

what are dams?

what are spillways?

what is afforestation?

what is flood warning?

what is zoning?

what is flood proofing?