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प्रश्न
Amazon rain forests are considered as 'Lungs of the planet' as they contribute ______ of the total oxygen in the earth's atmosphere.
पर्याय
10%
15%
20%
30%
MCQ
रिकाम्या जागा भरा
उत्तर
Amazon rain forests are considered as 'Lungs of the planet' as they contribute 20% of the total oxygen in the earth's atmosphere.
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
