Name the international treaty designed to protect the ozone layer from CFCs.
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McAfee is a
Which of the following is a characteristic of an exothermic reaction?
Which one of the following is not a borderline element?
Plants utilise ________ from the atmosphere foe photosynthesis
Which of the following carries oxygen to various parts of human body?
Nepal shares a border with which other country besides India?
Which of the following is NOT considered as Amir Khusro's creation?