Environmental Sciences, asked by sssumandas1456, 8 months ago

৮) রাসায়নিক কীটনাশক ব্যবহার করলে কি হয় এবং আগে কীটনাশক হিসেবে কি ব্যবহার করা হত ?

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Answered by fauziashifa921

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The earliest documented chemical pesticide compounds were elements such as sulfur, heavy metals and salt. The use of elemental compounds for pest control started at the dawn of agriculture and has continued, in some cases, through the present day.

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৮) রাসায়নিক কীটনাশক ব্যবহার করলে কি হয় এবং আগে কীটনাশক হিসেবে কি ব্যবহার করা হত ?​

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৮) রাসায়নিক কীটনাশক ব্যবহার করলে কি হয় এবং আগে কীটনাশক হিসেবে কি ব্যবহার করা হত ?