The question is asking to determine the year the the natural gas would last according to some estimate, base on my research and further investigation, the possible answer would be 92 year. I hope you are satisfied with my answer and feel free to ask for more if you have question and further clarification
It provided a means of transportation for goods across the country.
You're off by a few there lol :D Earth is actually 4.54 billion years old.
The Nazis used the theory of evolution as justification for their persecution of the Jewish people. In their mind, Jewish people were "corrupting" the non-Jewish bloodstream. This is what led to the reprehensible eugenics movement.
<span>The Russian serf system arose as peasants fled to the protection of large landowners to avoid Mongol taxes.</span>