How much amount of the total oxygen is contributed by the Amazon forest in the earth's atmosphere ?

Amazon rainforests are considered as 'lungs of the planet' as they contribute______of the total oxygen in the earth's atmosphere.

Amazon rainforests are considered as 'lungs of the planet' as they contribute______of the total oxygen in the earth's atmosphere. (a) 10 % (b) 15 % (c) 20 % (d) 30 %

Amazon rainforests are considered as 'lungs of the planet' as they contribute______of the total oxygen in the earth's atmosphere. (a) 10 % (b) 15 % (c) 20 % (d) 30 %

Amazon rainforests are considered as 'lungs of the planet' as they contribute______of the total oxygen in the earth's atmosphere. (a) 10 % (b) 15 % (c) 20 % (d) 30 %

Was oxygen present in free state in primitive earth's atmosphere?

Was oxygen present in free stable in primitive earth's atmosphere ?

Amazon rain forest are considered as lungs of the plant because they contribute_________of the total oxygen in the earth's atmosphere :-

Amazon rain forest are considered as lungs of the plant because they contribute_________of the total oxygen in the earth's atmosphere :-