Categorise canals, houses, schools, railways, ships, hospitals,banks, development banks, aerodromes, courts, power plants, transmission lines and satellites into categories of economic and social infrastructure.
(i) Canals (ii) Railways (iii) Ships
(iv) Banks (v) Development banks (vi) Aerodromes
(vii) Power plants (viii) Transmission lines (ix) Satellites
(i) Houses (ii) Schools
(iii) Hospitals (iv) Courts