Oolong tea, made from more mature leaves, usually have less caffeine than green tea. On the flip side, mature leaves contain less theanine, a sweet, natural relaxant that makes a tea much less caffeinated than it actually is. That is the theory, anyway.
The highest point in Asia is Mt. Everest which is 8,850 meters above sea level. And Asia's lowest point is the Dead Sea which is 400 meters below sea level.
Salinas Chicasin which is located in the eastern part of Argentina is the lowest point in Argentina at 38.75 meters below sea level. Because of the large differences in altitude, the variations in landscape and differences in location in relation to the equator Argentina has several climate zones.