<prompt> unaweza kugeuza matini haya ya swahilikwa kiingereza?lakini miradi mikubwa ya umwagiliaji iliyoanzishwa katika karne ya 20 ilipunguza kiasi cha maji kwenye mto; ziwa aral lilianza kupungua hadi kupotea na zaidi ya asilimia 90 ya eneo lake.  <response>: however, over the past 20 years, aggressive farming has diverted river water from the lake, and now over 90 percent of its water has disappeared. 