Match the words with their synonyms

1) general 6) soak a) saturate f) whole

2) dike 7) continuous b) universal g) levee

3) level 8) ample c) subterranean h) flat

4) rolling 9) underground d) oblige i) rich

5) force 10) entire e) persistent j) hilly

Fill in the correct prepositions.

1) to be available ___ irrigation; 2) the distance of water table ___ the surface; 3) to be planted __ rows; 4) to be flooded ___ a few hours ___ a time; 5) to plant seeds ___ the ridges ___ the furrows; 6) to seep ___ the ridges; 7) to be mounted ___ the ground;8) to become popular ___ the development of plastic; 9) to force water ___ a pipe ___ nozzles; 10) to distribute water ___ the crops ___ a spray; 11) ___ most cases; 12) to move ___ a farm ___ one’s own power; 13) to have openings ___ points corresponding ___ the location of the plant; 14) to trickle ___ the emitters ___ the soil; 15) to make it ideal ___ areas ___ small water supply.