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प्रश्न
Infectious diseases are caused by ______.
रिकाम्या जागा भरा
उत्तर
Infectious diseases are caused by microorganisms.
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या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
Infectious diseases are caused by ______.
Infectious diseases are caused by microorganisms.