(a) Five causes of flooding include:
(i) Excessive rainfall
(ii) Poor drainage system or lack of culverts
(iii) Erection of buildings on watershed
(iv) Inadequate urban planning
(v) Erection of week dams and embankments
(b) Four ways of controlling floods include:
(i) Channelization of flood from city centres
(ii) Public enlightenment on effects of flooding
(ii;) Construction of wider culverts or good drainage system
(iv) Installation of strong dams to act as flood reservoirs