If the atmosphere of the earth changed then, it could have had a lot to do with the sudden drop in life span.
जब जब महिनाहरु सँगै मौसम परिवर्तन हुँदै थियो तब तब झन घटनाहरु मंगलवारै पिच्छे बढ्दै जान थाल्यो ।