State what is indicated by the following symbols about the land use:

(a) Tanks and canals
(b) Open scrub
(c) Stony waste
(d) Causeway

(a) Presence of tanks and canals indicates that the land is used for agriculture.

(b) Presence of open scrub indicates that the land is used for sheep and goat rearing.

(c) Presence of stony waste indicates that the land is uncultivable.

(d) Presence of causeway indicates a dry river and desert regions which receive only seasonal rainfall.