Read the text and change the sentences as directed: —

(a) Water, an important, vital element of environment, is polluted in various ways (complex). It is called lifE- (b) The water which is pure is necessary for us (simple). (c) Men pollute water by throwing waste in it (compound). (d) The farmers use water in time of cultivation largely (passive). (e) It is one of the most important elements of all living beings (positive).