Whenever we see a plane flying in the sky, we try to guess at what height it would be flying. We think that maybe this plane is flying at an altitude of 10 or 15 thousand feet. but it’s not like that. You will be surprised to know that all the passenger planes that fly in the sky… their height is only at an altitude of about 40000 feet or more. Why is it flown, is there any danger if the plane is flown below it. Along with this, one…
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