Hi Abolfazl, Corrections are highlighted: Our use of pesticides and other chemicals have polluted both the soil and water, and this pollution has been proven to be toxic to many of the plants which are part of the habitat of many animals. In my opinion underlined verb is incorrect and it must be has been proved to be but I'm not sure And I need some professional opinions I would be grateful to know other opinions Hope this helps. Regards, Zenah
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