In Pakistan, the total length of canal system exceeds________________?

A. Soil moisture
B. Water pressure
C. Wind pressure
D. None of the above

A. Sequential cropg
B. Strip cropg
C. Multiple cropg
D. All the above

A. Monocropg
B. Monoculture
C. Specialized farming
D. Intensive cropg

A. Water stress
B. Drought
C. Wilting
D. None of the above

A. 1970
B. 1968
C. 1971
D. 1978

A. They need very little water to grow
B. Six crops are harvested in a year
C. They are disease resistant
D. Help in nitrogen economy of nature