The intensive cultivation on land by which soil fertility is destroyed and lost is called

desertification of land
cloud seeding of land
catchment of land
over cultivation of land
over cultivation of land  

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The technique of growing crops without soil is classified as:
A. geoponics
B. tetraponics
C. hexapodies
D. hydroponics
The example of forest area which is cleared for agriculture purpose is:
A. Australian Circle
B. Arctic Circle
C. The Amazon Basin
D. Antarctic Circle
The Amazon Basin is used for growing soybean and cattle farming in:
A. Nigeria
B. New Zealand
C. Brazil
D. Australia
Considering land reclamation, the raised embankments are also known as:
A. dykes
B. derelict
C. polder
D. catchment
Considering the land supply, the percentage of Earth’s surface which consists of land is:
A. 30%
B. 50%
C. 10%
D. 12%
The kind of farming through which steep areas can also be used for cultivation is classified as:
A. forestation
B. terrace farming
C. desertification
D. deforestation
The name of plant which can be used as biofuel is:
A. Jatropha Curcas plant
B. Cactus
C. Alnus glutinosa
D. Maclura pomifera

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