প্রশ্ন ও উত্তর
Which one of the following is responsible for the depletion of ozone layer?
সাধারণ বিজ্ঞান Basic Information of Daily Science, Inventions and... 07 Oct, 2020
প্রশ্ন Which one of the following is responsible for the depletion of ozone layer?
সঠিক উত্তর
chloroflurocarbons
মন্তব্য
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