NCERT Important Questions Class 9 Science biology Chapter 15
Important NCERT Extra Questions
Chapter 15 Improvement in Food Resources
NCERT Book Extra Questions for Session 2022-2023
CBSE Board and UP Board Others state Board
Fill in the blanks: The process of supplying………..to crops in the fields by means of canals, reservoirs, wells, river, valley systems and river lift systems is known as…………….
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The process of supplying Water to crops in the fields by means of canals, reservoirs, wells, river, valley systems and river lift systems is known as irrigation