In one day a human being breathes oxygen equivalent to 3 cylinders. Each oxygen cylinder on an average cost Rs.700/-, without subsidy. So, in a day one uses oxygen worth Rs.2,100/- and for a full year it is Rs.7,66,500/-.
And, if we consider an average life span 65 years; the cost of oxygen we use become a staggering sum of Rs.500,00,000/- = Rs. 50 million.
All the oxygen is derived free of cost from the surrounding trees and nature… Very few people look at trees as a RESOURCE and there’s rampant tree cutting going on everywhere by indifferent Humans which must stop.
Please convey this to your friends and care more for tress and plant more of them to get more free oxygen for mankind.
Don’t pollute it, good planets are hard to find.