Soil Salinity

There are _____ types of soil salinity ( write the word not the number)

Dryland salinity is mainly caused by the clearance of

• shallow rooted native trees

• shallow rooted crops

• deep rooted native trees

• deep rooted crops

Salt is a natural part of the Australian environment.

• True

• False

Soil salinity is caused by a rising

• saltiness in the soil

• accumulation of nutrients in the soil

• water table under ground

• level of fertilisers

The second form of salinity is ________ salinity

• dryland

• irrigation

• urban

• river

Irrigation salinity is caused by ________ water crops

• over

• under

Australia is shaped like a

• flat mountain

• saucer

• plain

• steep moutnain