Waterpollutionhappenswhenwastethingsfrommanyareasarethr...
问题详情：Waterpollutionhappenswhenwastethingsfrommanyareasarethrownintorivers,lakesandseas.AgricultureTogetmorefood,farmersuselargeamountsofchemicals(化学制品).Whenthechemicalsarenotcompletelyusedbythe...