Mt.Everest (27°54’ N,86°54’ E),the highest peak,is often referred to as the earth’s ’third’ pole,at an elevation of 8844.43 m. Due to the difficult logis
Although 1-alkyl-2,3,6-trimethylbenzenes and a high relative amount of 1,2,3,4-tetramethylbenzene have been detected in marine oils and oil asphaltenes from Tab